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Finding the Fourth Proportional to 7,957.93, 10,981.78 and 4,421.02

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Solution

The fourth proportional to 7,957.93, 10,981.78 and 4,421.02 is: 6,100.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.93 : 10,981.78 = 4,421.02 : x
  2. Step 2: Convert to fraction form
    7,957.93/10,981.78 = 4,421.02/x
  3. Step 3: Cross multiply
    7,957.93x = 10,981.78 × 4,421.02
  4. Step 4: Simplify right side
    7,957.93x = 48,550,669.02
  5. Step 5: Solve for x
    x = 48,550,669.02/7,957.93
  6. Step 6: Final answer
    x = 6,100.92

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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.