Home / 1,079.36-1,619.24-348.92

Finding the Fourth Proportional to 1,079.36, 1,619.24 and 348.92

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Solution

The fourth proportional to 1,079.36, 1,619.24 and 348.92 is: 523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.36 : 1,619.24 = 348.92 : x
  2. Step 2: Convert to fraction form
    1,079.36/1,619.24 = 348.92/x
  3. Step 3: Cross multiply
    1,079.36x = 1,619.24 × 348.92
  4. Step 4: Simplify right side
    1,079.36x = 564,985.22
  5. Step 5: Solve for x
    x = 564,985.22/1,079.36
  6. Step 6: Final answer
    x = 523.44

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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.