Home / 5,155.22-7,732.76-1,259.66

Finding the Fourth Proportional to 5,155.22, 7,732.76 and 1,259.66

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Solution

The fourth proportional to 5,155.22, 7,732.76 and 1,259.66 is: 1,889.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.22 : 7,732.76 = 1,259.66 : x
  2. Step 2: Convert to fraction form
    5,155.22/7,732.76 = 1,259.66/x
  3. Step 3: Cross multiply
    5,155.22x = 7,732.76 × 1,259.66
  4. Step 4: Simplify right side
    5,155.22x = 9,740,648.46
  5. Step 5: Solve for x
    x = 9,740,648.46/5,155.22
  6. Step 6: Final answer
    x = 1,889.47

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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.