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Finding the Fourth Proportional to 1,154.39, 1,592.80 and 682.16

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Solution

The fourth proportional to 1,154.39, 1,592.80 and 682.16 is: 941.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.39 : 1,592.80 = 682.16 : x
  2. Step 2: Convert to fraction form
    1,154.39/1,592.80 = 682.16/x
  3. Step 3: Cross multiply
    1,154.39x = 1,592.80 × 682.16
  4. Step 4: Simplify right side
    1,154.39x = 1,086,534.78
  5. Step 5: Solve for x
    x = 1,086,534.78/1,154.39
  6. Step 6: Final answer
    x = 941.22

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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.