Home / 3,519.72-5,279.58-1,020.98

Finding the Fourth Proportional to 3,519.72, 5,279.58 and 1,020.98

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Solution

The fourth proportional to 3,519.72, 5,279.58 and 1,020.98 is: 1,531.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.72 : 5,279.58 = 1,020.98 : x
  2. Step 2: Convert to fraction form
    3,519.72/5,279.58 = 1,020.98/x
  3. Step 3: Cross multiply
    3,519.72x = 5,279.58 × 1,020.98
  4. Step 4: Simplify right side
    3,519.72x = 5,390,319.19
  5. Step 5: Solve for x
    x = 5,390,319.19/3,519.72
  6. Step 6: Final answer
    x = 1,531.46

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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.