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Finding the Fourth Proportional to 5,471.57, 8,208.57 and 1,575.98

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Solution

The fourth proportional to 5,471.57, 8,208.57 and 1,575.98 is: 2,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.57 : 8,208.57 = 1,575.98 : x
  2. Step 2: Convert to fraction form
    5,471.57/8,208.57 = 1,575.98/x
  3. Step 3: Cross multiply
    5,471.57x = 8,208.57 × 1,575.98
  4. Step 4: Simplify right side
    5,471.57x = 12,936,501.11
  5. Step 5: Solve for x
    x = 12,936,501.11/5,471.57
  6. Step 6: Final answer
    x = 2,364.31

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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.