Home / 7,957.28-10,981.20-4,812.96

Finding the Fourth Proportional to 7,957.28, 10,981.20 and 4,812.96

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Solution

The fourth proportional to 7,957.28, 10,981.20 and 4,812.96 is: 6,641.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.28 : 10,981.20 = 4,812.96 : x
  2. Step 2: Convert to fraction form
    7,957.28/10,981.20 = 4,812.96/x
  3. Step 3: Cross multiply
    7,957.28x = 10,981.20 × 4,812.96
  4. Step 4: Simplify right side
    7,957.28x = 52,852,076.35
  5. Step 5: Solve for x
    x = 52,852,076.35/7,957.28
  6. Step 6: Final answer
    x = 6,641.98

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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.