Home / 5,728.40-8,592.60-2,812.40

Finding the Fourth Proportional to 5,728.40, 8,592.60 and 2,812.40

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Solution

The fourth proportional to 5,728.40, 8,592.60 and 2,812.40 is: 4,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.40 : 8,592.60 = 2,812.40 : x
  2. Step 2: Convert to fraction form
    5,728.40/8,592.60 = 2,812.40/x
  3. Step 3: Cross multiply
    5,728.40x = 8,592.60 × 2,812.40
  4. Step 4: Simplify right side
    5,728.40x = 24,165,828.24
  5. Step 5: Solve for x
    x = 24,165,828.24/5,728.40
  6. Step 6: Final answer
    x = 4,218.60

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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.