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Finding the Fourth Proportional to 3,387.64, 4,675.28 and 1,895.68

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Solution

The fourth proportional to 3,387.64, 4,675.28 and 1,895.68 is: 2,616.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.64 : 4,675.28 = 1,895.68 : x
  2. Step 2: Convert to fraction form
    3,387.64/4,675.28 = 1,895.68/x
  3. Step 3: Cross multiply
    3,387.64x = 4,675.28 × 1,895.68
  4. Step 4: Simplify right side
    3,387.64x = 8,862,834.79
  5. Step 5: Solve for x
    x = 8,862,834.79/3,387.64
  6. Step 6: Final answer
    x = 2,616.23

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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.