Home / 5,718.80-8,575.62-2,430.20

Finding the Fourth Proportional to 5,718.80, 8,575.62 and 2,430.20

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Solution

The fourth proportional to 5,718.80, 8,575.62 and 2,430.20 is: 3,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.80 : 8,575.62 = 2,430.20 : x
  2. Step 2: Convert to fraction form
    5,718.80/8,575.62 = 2,430.20/x
  3. Step 3: Cross multiply
    5,718.80x = 8,575.62 × 2,430.20
  4. Step 4: Simplify right side
    5,718.80x = 20,840,471.72
  5. Step 5: Solve for x
    x = 20,840,471.72/5,718.80
  6. Step 6: Final answer
    x = 3,644.20

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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.