Home / 3,036.30-4,554.45-2,421.20

Finding the Fourth Proportional to 3,036.30, 4,554.45 and 2,421.20

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Solution

The fourth proportional to 3,036.30, 4,554.45 and 2,421.20 is: 3,631.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.30 : 4,554.45 = 2,421.20 : x
  2. Step 2: Convert to fraction form
    3,036.30/4,554.45 = 2,421.20/x
  3. Step 3: Cross multiply
    3,036.30x = 4,554.45 × 2,421.20
  4. Step 4: Simplify right side
    3,036.30x = 11,027,211.57
  5. Step 5: Solve for x
    x = 11,027,211.57/3,036.30
  6. Step 6: Final answer
    x = 3,631.79

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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.