Home / 5,337.80-8,001.30-3,145.40

Finding the Fourth Proportional to 5,337.80, 8,001.30 and 3,145.40

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Solution

The fourth proportional to 5,337.80, 8,001.30 and 3,145.40 is: 4,714.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,337.80 : 8,001.30 = 3,145.40 : x
  2. Step 2: Convert to fraction form
    5,337.80/8,001.30 = 3,145.40/x
  3. Step 3: Cross multiply
    5,337.80x = 8,001.30 × 3,145.40
  4. Step 4: Simplify right side
    5,337.80x = 25,167,289.02
  5. Step 5: Solve for x
    x = 25,167,289.02/5,337.80
  6. Step 6: Final answer
    x = 4,714.92

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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.