Home / 5,159.31-7,739.78-1,695.75

Finding the Fourth Proportional to 5,159.31, 7,739.78 and 1,695.75

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Solution

The fourth proportional to 5,159.31, 7,739.78 and 1,695.75 is: 2,543.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.31 : 7,739.78 = 1,695.75 : x
  2. Step 2: Convert to fraction form
    5,159.31/7,739.78 = 1,695.75/x
  3. Step 3: Cross multiply
    5,159.31x = 7,739.78 × 1,695.75
  4. Step 4: Simplify right side
    5,159.31x = 13,124,723.46
  5. Step 5: Solve for x
    x = 13,124,723.46/5,159.31
  6. Step 6: Final answer
    x = 2,543.89

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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.