Home / 5,740.80-8,612.48-3,143.04

Finding the Fourth Proportional to 5,740.80, 8,612.48 and 3,143.04

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Solution

The fourth proportional to 5,740.80, 8,612.48 and 3,143.04 is: 4,715.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,740.80 : 8,612.48 = 3,143.04 : x
  2. Step 2: Convert to fraction form
    5,740.80/8,612.48 = 3,143.04/x
  3. Step 3: Cross multiply
    5,740.80x = 8,612.48 × 3,143.04
  4. Step 4: Simplify right side
    5,740.80x = 27,069,369.14
  5. Step 5: Solve for x
    x = 27,069,369.14/5,740.80
  6. Step 6: Final answer
    x = 4,715.26

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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.