Home / 1,030.29-1,421.73-588.21

Finding the Fourth Proportional to 1,030.29, 1,421.73 and 588.21

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Solution

The fourth proportional to 1,030.29, 1,421.73 and 588.21 is: 811.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.29 : 1,421.73 = 588.21 : x
  2. Step 2: Convert to fraction form
    1,030.29/1,421.73 = 588.21/x
  3. Step 3: Cross multiply
    1,030.29x = 1,421.73 × 588.21
  4. Step 4: Simplify right side
    1,030.29x = 836,275.80
  5. Step 5: Solve for x
    x = 836,275.80/1,030.29
  6. Step 6: Final answer
    x = 811.69

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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.