Home / 5,228.30-7,842.45-1,332.70

Finding the Fourth Proportional to 5,228.30, 7,842.45 and 1,332.70

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Solution

The fourth proportional to 5,228.30, 7,842.45 and 1,332.70 is: 1,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.30 : 7,842.45 = 1,332.70 : x
  2. Step 2: Convert to fraction form
    5,228.30/7,842.45 = 1,332.70/x
  3. Step 3: Cross multiply
    5,228.30x = 7,842.45 × 1,332.70
  4. Step 4: Simplify right side
    5,228.30x = 10,451,651.38
  5. Step 5: Solve for x
    x = 10,451,651.38/5,228.30
  6. Step 6: Final answer
    x = 1,999.05

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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.