Home / 5,189.20-7,785.04-1,726.48

Finding the Fourth Proportional to 5,189.20, 7,785.04 and 1,726.48

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Solution

The fourth proportional to 5,189.20, 7,785.04 and 1,726.48 is: 2,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.20 : 7,785.04 = 1,726.48 : x
  2. Step 2: Convert to fraction form
    5,189.20/7,785.04 = 1,726.48/x
  3. Step 3: Cross multiply
    5,189.20x = 7,785.04 × 1,726.48
  4. Step 4: Simplify right side
    5,189.20x = 13,440,715.86
  5. Step 5: Solve for x
    x = 13,440,715.86/5,189.20
  6. Step 6: Final answer
    x = 2,590.13

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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.