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Finding the Fourth Proportional to 3,366.65, 5,070.23 and 2,981.49

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Solution

The fourth proportional to 3,366.65, 5,070.23 and 2,981.49 is: 4,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,366.65 : 5,070.23 = 2,981.49 : x
  2. Step 2: Convert to fraction form
    3,366.65/5,070.23 = 2,981.49/x
  3. Step 3: Cross multiply
    3,366.65x = 5,070.23 × 2,981.49
  4. Step 4: Simplify right side
    3,366.65x = 15,116,825.14
  5. Step 5: Solve for x
    x = 15,116,825.14/3,366.65
  6. Step 6: Final answer
    x = 4,490.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.