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Finding the Fourth Proportional to 5,771.12, 8,666.40 and 5,725.76

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Solution

The fourth proportional to 5,771.12, 8,666.40 and 5,725.76 is: 8,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,771.12 : 8,666.40 = 5,725.76 : x
  2. Step 2: Convert to fraction form
    5,771.12/8,666.40 = 5,725.76/x
  3. Step 3: Cross multiply
    5,771.12x = 8,666.40 × 5,725.76
  4. Step 4: Simplify right side
    5,771.12x = 49,621,726.46
  5. Step 5: Solve for x
    x = 49,621,726.46/5,771.12
  6. Step 6: Final answer
    x = 8,598.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.