Home / 7,211.36-9,945-4,554.14

Finding the Fourth Proportional to 7,211.36, 9,945 and 4,554.14

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Solution

The fourth proportional to 7,211.36, 9,945 and 4,554.14 is: 6,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.36 : 9,945 = 4,554.14 : x
  2. Step 2: Convert to fraction form
    7,211.36/9,945 = 4,554.14/x
  3. Step 3: Cross multiply
    7,211.36x = 9,945 × 4,554.14
  4. Step 4: Simplify right side
    7,211.36x = 45,290,922.30
  5. Step 5: Solve for x
    x = 45,290,922.30/7,211.36
  6. Step 6: Final answer
    x = 6,280.50

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.