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Finding the Fourth Proportional to 580.76, 801.22 and 373.88

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Solution

The fourth proportional to 580.76, 801.22 and 373.88 is: 515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.76 : 801.22 = 373.88 : x
  2. Step 2: Convert to fraction form
    580.76/801.22 = 373.88/x
  3. Step 3: Cross multiply
    580.76x = 801.22 × 373.88
  4. Step 4: Simplify right side
    580.76x = 299,560.13
  5. Step 5: Solve for x
    x = 299,560.13/580.76
  6. Step 6: Final answer
    x = 515.81

Related Problems

Find fourth proportional to 290.38, 400.61 and 186.94
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Double scale
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Similar ratio
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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.