Home / 1,026.13-1,539.20-342.13

Finding the Fourth Proportional to 1,026.13, 1,539.20 and 342.13

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Solution

The fourth proportional to 1,026.13, 1,539.20 and 342.13 is: 513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.13 : 1,539.20 = 342.13 : x
  2. Step 2: Convert to fraction form
    1,026.13/1,539.20 = 342.13/x
  3. Step 3: Cross multiply
    1,026.13x = 1,539.20 × 342.13
  4. Step 4: Simplify right side
    1,026.13x = 526,606.50
  5. Step 5: Solve for x
    x = 526,606.50/1,026.13
  6. Step 6: Final answer
    x = 513.20

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Half scale
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Double scale
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Similar ratio
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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.