Home / 3,588.48-5,384.07-1,398.78

Finding the Fourth Proportional to 3,588.48, 5,384.07 and 1,398.78

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Solution

The fourth proportional to 3,588.48, 5,384.07 and 1,398.78 is: 2,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,588.48 : 5,384.07 = 1,398.78 : x
  2. Step 2: Convert to fraction form
    3,588.48/5,384.07 = 1,398.78/x
  3. Step 3: Cross multiply
    3,588.48x = 5,384.07 × 1,398.78
  4. Step 4: Simplify right side
    3,588.48x = 7,531,129.43
  5. Step 5: Solve for x
    x = 7,531,129.43/3,588.48
  6. Step 6: Final answer
    x = 2,098.70

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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.