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Finding the Fourth Proportional to 7,960.02, 10,981.62 and 4,810.74

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Solution

The fourth proportional to 7,960.02, 10,981.62 and 4,810.74 is: 6,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.02 : 10,981.62 = 4,810.74 : x
  2. Step 2: Convert to fraction form
    7,960.02/10,981.62 = 4,810.74/x
  3. Step 3: Cross multiply
    7,960.02x = 10,981.62 × 4,810.74
  4. Step 4: Simplify right side
    7,960.02x = 52,829,718.60
  5. Step 5: Solve for x
    x = 52,829,718.60/7,960.02
  6. Step 6: Final answer
    x = 6,636.88

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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.