Home / 5,254.74-7,248.78-3,129.66

Finding the Fourth Proportional to 5,254.74, 7,248.78 and 3,129.66

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Solution

The fourth proportional to 5,254.74, 7,248.78 and 3,129.66 is: 4,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.74 : 7,248.78 = 3,129.66 : x
  2. Step 2: Convert to fraction form
    5,254.74/7,248.78 = 3,129.66/x
  3. Step 3: Cross multiply
    5,254.74x = 7,248.78 × 3,129.66
  4. Step 4: Simplify right side
    5,254.74x = 22,686,216.81
  5. Step 5: Solve for x
    x = 22,686,216.81/5,254.74
  6. Step 6: Final answer
    x = 4,317.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.