Home / 3,781.48-5,218.08-2,456.32

Finding the Fourth Proportional to 3,781.48, 5,218.08 and 2,456.32

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Solution

The fourth proportional to 3,781.48, 5,218.08 and 2,456.32 is: 3,389.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.48 : 5,218.08 = 2,456.32 : x
  2. Step 2: Convert to fraction form
    3,781.48/5,218.08 = 2,456.32/x
  3. Step 3: Cross multiply
    3,781.48x = 5,218.08 × 2,456.32
  4. Step 4: Simplify right side
    3,781.48x = 12,817,274.27
  5. Step 5: Solve for x
    x = 12,817,274.27/3,781.48
  6. Step 6: Final answer
    x = 3,389.49

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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.