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Finding the Fourth Proportional to 580.92, 801.72 and 348.12

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Solution

The fourth proportional to 580.92, 801.72 and 348.12 is: 480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.92 : 801.72 = 348.12 : x
  2. Step 2: Convert to fraction form
    580.92/801.72 = 348.12/x
  3. Step 3: Cross multiply
    580.92x = 801.72 × 348.12
  4. Step 4: Simplify right side
    580.92x = 279,094.77
  5. Step 5: Solve for x
    x = 279,094.77/580.92
  6. Step 6: Final answer
    x = 480.44

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Double scale
Find fourth proportional to 581.92, 803.10 and 349.12
Similar ratio
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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.