Home / 6,507.20-9,760.80-4,174.40

Finding the Fourth Proportional to 6,507.20, 9,760.80 and 4,174.40

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Solution

The fourth proportional to 6,507.20, 9,760.80 and 4,174.40 is: 6,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507.20 : 9,760.80 = 4,174.40 : x
  2. Step 2: Convert to fraction form
    6,507.20/9,760.80 = 4,174.40/x
  3. Step 3: Cross multiply
    6,507.20x = 9,760.80 × 4,174.40
  4. Step 4: Simplify right side
    6,507.20x = 40,745,483.52
  5. Step 5: Solve for x
    x = 40,745,483.52/6,507.20
  6. Step 6: Final answer
    x = 6,261.60

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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.