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Finding the Fourth Proportional to 1,104.96, 1,657.90 and 557.50

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Solution

The fourth proportional to 1,104.96, 1,657.90 and 557.50 is: 836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.96 : 1,657.90 = 557.50 : x
  2. Step 2: Convert to fraction form
    1,104.96/1,657.90 = 557.50/x
  3. Step 3: Cross multiply
    1,104.96x = 1,657.90 × 557.50
  4. Step 4: Simplify right side
    1,104.96x = 924,279.25
  5. Step 5: Solve for x
    x = 924,279.25/1,104.96
  6. Step 6: Final answer
    x = 836.48

Related Problems

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Double scale
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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.