Home / 5,025.12-6,930.68-4,689.78

Finding the Fourth Proportional to 5,025.12, 6,930.68 and 4,689.78

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Solution

The fourth proportional to 5,025.12, 6,930.68 and 4,689.78 is: 6,468.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,025.12 : 6,930.68 = 4,689.78 : x
  2. Step 2: Convert to fraction form
    5,025.12/6,930.68 = 4,689.78/x
  3. Step 3: Cross multiply
    5,025.12x = 6,930.68 × 4,689.78
  4. Step 4: Simplify right side
    5,025.12x = 32,503,364.45
  5. Step 5: Solve for x
    x = 32,503,364.45/5,025.12
  6. Step 6: Final answer
    x = 6,468.18

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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.