Home / 5,189.50-7,785.47-1,726.75

Finding the Fourth Proportional to 5,189.50, 7,785.47 and 1,726.75

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Solution

The fourth proportional to 5,189.50, 7,785.47 and 1,726.75 is: 2,590.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.50 : 7,785.47 = 1,726.75 : x
  2. Step 2: Convert to fraction form
    5,189.50/7,785.47 = 1,726.75/x
  3. Step 3: Cross multiply
    5,189.50x = 7,785.47 × 1,726.75
  4. Step 4: Simplify right side
    5,189.50x = 13,443,560.32
  5. Step 5: Solve for x
    x = 13,443,560.32/5,189.50
  6. Step 6: Final answer
    x = 2,590.53

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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.