Home / 1,422.26-2,134.33-497.81

Finding the Fourth Proportional to 1,422.26, 2,134.33 and 497.81

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Solution

The fourth proportional to 1,422.26, 2,134.33 and 497.81 is: 747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.26 : 2,134.33 = 497.81 : x
  2. Step 2: Convert to fraction form
    1,422.26/2,134.33 = 497.81/x
  3. Step 3: Cross multiply
    1,422.26x = 2,134.33 × 497.81
  4. Step 4: Simplify right side
    1,422.26x = 1,062,501.41
  5. Step 5: Solve for x
    x = 1,062,501.41/1,422.26
  6. Step 6: Final answer
    x = 747.05

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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.