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Finding the Fourth Proportional to 5,724.48, 8,586.80 and 1,620.48

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Solution

The fourth proportional to 5,724.48, 8,586.80 and 1,620.48 is: 2,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,724.48 : 8,586.80 = 1,620.48 : x
  2. Step 2: Convert to fraction form
    5,724.48/8,586.80 = 1,620.48/x
  3. Step 3: Cross multiply
    5,724.48x = 8,586.80 × 1,620.48
  4. Step 4: Simplify right side
    5,724.48x = 13,914,737.66
  5. Step 5: Solve for x
    x = 13,914,737.66/5,724.48
  6. Step 6: Final answer
    x = 2,430.74

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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.