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Finding the Fourth Proportional to 583.91, 876.13 and 291.39

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Solution

The fourth proportional to 583.91, 876.13 and 291.39 is: 437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.91 : 876.13 = 291.39 : x
  2. Step 2: Convert to fraction form
    583.91/876.13 = 291.39/x
  3. Step 3: Cross multiply
    583.91x = 876.13 × 291.39
  4. Step 4: Simplify right side
    583.91x = 255,294.06
  5. Step 5: Solve for x
    x = 255,294.06/583.91
  6. Step 6: Final answer
    x = 437.22

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Double scale
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1.5x scale

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.