Home / 4,678.23-6,456.17-2,689.41

Finding the Fourth Proportional to 4,678.23, 6,456.17 and 2,689.41

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Solution

The fourth proportional to 4,678.23, 6,456.17 and 2,689.41 is: 3,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.23 : 6,456.17 = 2,689.41 : x
  2. Step 2: Convert to fraction form
    4,678.23/6,456.17 = 2,689.41/x
  3. Step 3: Cross multiply
    4,678.23x = 6,456.17 × 2,689.41
  4. Step 4: Simplify right side
    4,678.23x = 17,363,274.71
  5. Step 5: Solve for x
    x = 17,363,274.71/4,678.23
  6. Step 6: Final answer
    x = 3,711.51

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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.