Home / 5,357.20-7,393.30-3,000.12

Finding the Fourth Proportional to 5,357.20, 7,393.30 and 3,000.12

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Solution

The fourth proportional to 5,357.20, 7,393.30 and 3,000.12 is: 4,140.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357.20 : 7,393.30 = 3,000.12 : x
  2. Step 2: Convert to fraction form
    5,357.20/7,393.30 = 3,000.12/x
  3. Step 3: Cross multiply
    5,357.20x = 7,393.30 × 3,000.12
  4. Step 4: Simplify right side
    5,357.20x = 22,180,787.20
  5. Step 5: Solve for x
    x = 22,180,787.20/5,357.20
  6. Step 6: Final answer
    x = 4,140.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.