Home / 2,238.39-3,088.53-1,294.20

Finding the Fourth Proportional to 2,238.39, 3,088.53 and 1,294.20

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Solution

The fourth proportional to 2,238.39, 3,088.53 and 1,294.20 is: 1,785.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.39 : 3,088.53 = 1,294.20 : x
  2. Step 2: Convert to fraction form
    2,238.39/3,088.53 = 1,294.20/x
  3. Step 3: Cross multiply
    2,238.39x = 3,088.53 × 1,294.20
  4. Step 4: Simplify right side
    2,238.39x = 3,997,175.53
  5. Step 5: Solve for x
    x = 3,997,175.53/2,238.39
  6. Step 6: Final answer
    x = 1,785.74

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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.