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Finding the Fourth Proportional to 5,660.55, 8,534.22 and 5,279.40

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Solution

The fourth proportional to 5,660.55, 8,534.22 and 5,279.40 is: 7,959.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.55 : 8,534.22 = 5,279.40 : x
  2. Step 2: Convert to fraction form
    5,660.55/8,534.22 = 5,279.40/x
  3. Step 3: Cross multiply
    5,660.55x = 8,534.22 × 5,279.40
  4. Step 4: Simplify right side
    5,660.55x = 45,055,561.07
  5. Step 5: Solve for x
    x = 45,055,561.07/5,660.55
  6. Step 6: Final answer
    x = 7,959.57

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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.