Home / 4,129.81-5,691.26-4,053.89

Finding the Fourth Proportional to 4,129.81, 5,691.26 and 4,053.89

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Solution

The fourth proportional to 4,129.81, 5,691.26 and 4,053.89 is: 5,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.81 : 5,691.26 = 4,053.89 : x
  2. Step 2: Convert to fraction form
    4,129.81/5,691.26 = 4,053.89/x
  3. Step 3: Cross multiply
    4,129.81x = 5,691.26 × 4,053.89
  4. Step 4: Simplify right side
    4,129.81x = 23,071,729.82
  5. Step 5: Solve for x
    x = 23,071,729.82/4,129.81
  6. Step 6: Final answer
    x = 5,586.64

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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.