Home / 4,578.28-6,318.10-2,689.40

Finding the Fourth Proportional to 4,578.28, 6,318.10 and 2,689.40

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Solution

The fourth proportional to 4,578.28, 6,318.10 and 2,689.40 is: 3,711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.28 : 6,318.10 = 2,689.40 : x
  2. Step 2: Convert to fraction form
    4,578.28/6,318.10 = 2,689.40/x
  3. Step 3: Cross multiply
    4,578.28x = 6,318.10 × 2,689.40
  4. Step 4: Simplify right side
    4,578.28x = 16,991,898.14
  5. Step 5: Solve for x
    x = 16,991,898.14/4,578.28
  6. Step 6: Final answer
    x = 3,711.42

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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.