Home / 1,612.38-2,224.98-913.80

Finding the Fourth Proportional to 1,612.38, 2,224.98 and 913.80

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Solution

The fourth proportional to 1,612.38, 2,224.98 and 913.80 is: 1,260.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.38 : 2,224.98 = 913.80 : x
  2. Step 2: Convert to fraction form
    1,612.38/2,224.98 = 913.80/x
  3. Step 3: Cross multiply
    1,612.38x = 2,224.98 × 913.80
  4. Step 4: Simplify right side
    1,612.38x = 2,033,186.72
  5. Step 5: Solve for x
    x = 2,033,186.72/1,612.38
  6. Step 6: Final answer
    x = 1,260.98

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.