Home / 4,874.31-6,726.51-2,778.39

Finding the Fourth Proportional to 4,874.31, 6,726.51 and 2,778.39

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Solution

The fourth proportional to 4,874.31, 6,726.51 and 2,778.39 is: 3,834.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.31 : 6,726.51 = 2,778.39 : x
  2. Step 2: Convert to fraction form
    4,874.31/6,726.51 = 2,778.39/x
  3. Step 3: Cross multiply
    4,874.31x = 6,726.51 × 2,778.39
  4. Step 4: Simplify right side
    4,874.31x = 18,688,868.12
  5. Step 5: Solve for x
    x = 18,688,868.12/4,874.31
  6. Step 6: Final answer
    x = 3,834.16

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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.