Home / 7,747.12-10,690.88-4,389.88

Finding the Fourth Proportional to 7,747.12, 10,690.88 and 4,389.88

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Solution

The fourth proportional to 7,747.12, 10,690.88 and 4,389.88 is: 6,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.12 : 10,690.88 = 4,389.88 : x
  2. Step 2: Convert to fraction form
    7,747.12/10,690.88 = 4,389.88/x
  3. Step 3: Cross multiply
    7,747.12x = 10,690.88 × 4,389.88
  4. Step 4: Simplify right side
    7,747.12x = 46,931,680.29
  5. Step 5: Solve for x
    x = 46,931,680.29/7,747.12
  6. Step 6: Final answer
    x = 6,057.95

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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.