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Finding the Fourth Proportional to 1,601.48, 2,402.22 and 917

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Solution

The fourth proportional to 1,601.48, 2,402.22 and 917 is: 1,375.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.48 : 2,402.22 = 917 : x
  2. Step 2: Convert to fraction form
    1,601.48/2,402.22 = 917/x
  3. Step 3: Cross multiply
    1,601.48x = 2,402.22 × 917
  4. Step 4: Simplify right side
    1,601.48x = 2,202,835.74
  5. Step 5: Solve for x
    x = 2,202,835.74/1,601.48
  6. Step 6: Final answer
    x = 1,375.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,602.48, 2,403.72 and 918
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.