Home / 3,387.78-4,675.14-1,895.72

Finding the Fourth Proportional to 3,387.78, 4,675.14 and 1,895.72

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Solution

The fourth proportional to 3,387.78, 4,675.14 and 1,895.72 is: 2,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.78 : 4,675.14 = 1,895.72 : x
  2. Step 2: Convert to fraction form
    3,387.78/4,675.14 = 1,895.72/x
  3. Step 3: Cross multiply
    3,387.78x = 4,675.14 × 1,895.72
  4. Step 4: Simplify right side
    3,387.78x = 8,862,746.92
  5. Step 5: Solve for x
    x = 8,862,746.92/3,387.78
  6. Step 6: Final answer
    x = 2,616.10

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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.