Home / 1,646.38-2,272.20-1,088.01

Finding the Fourth Proportional to 1,646.38, 2,272.20 and 1,088.01

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Solution

The fourth proportional to 1,646.38, 2,272.20 and 1,088.01 is: 1,501.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.38 : 2,272.20 = 1,088.01 : x
  2. Step 2: Convert to fraction form
    1,646.38/2,272.20 = 1,088.01/x
  3. Step 3: Cross multiply
    1,646.38x = 2,272.20 × 1,088.01
  4. Step 4: Simplify right side
    1,646.38x = 2,472,176.32
  5. Step 5: Solve for x
    x = 2,472,176.32/1,646.38
  6. Step 6: Final answer
    x = 1,501.58

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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.