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Finding the Fourth Proportional to 961.30, 1,326.27 and 588.07

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Solution

The fourth proportional to 961.30, 1,326.27 and 588.07 is: 811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    961.30 : 1,326.27 = 588.07 : x
  2. Step 2: Convert to fraction form
    961.30/1,326.27 = 588.07/x
  3. Step 3: Cross multiply
    961.30x = 1,326.27 × 588.07
  4. Step 4: Simplify right side
    961.30x = 779,939.60
  5. Step 5: Solve for x
    x = 779,939.60/961.30
  6. Step 6: Final answer
    x = 811.34

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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.