Home / 3,717.66-5,128.02-2,389.08

Finding the Fourth Proportional to 3,717.66, 5,128.02 and 2,389.08

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Solution

The fourth proportional to 3,717.66, 5,128.02 and 2,389.08 is: 3,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.66 : 5,128.02 = 2,389.08 : x
  2. Step 2: Convert to fraction form
    3,717.66/5,128.02 = 2,389.08/x
  3. Step 3: Cross multiply
    3,717.66x = 5,128.02 × 2,389.08
  4. Step 4: Simplify right side
    3,717.66x = 12,251,250.02
  5. Step 5: Solve for x
    x = 12,251,250.02/3,717.66
  6. Step 6: Final answer
    x = 3,295.42

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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.