Home / 4,947.85-7,421.78-1,250.09

Finding the Fourth Proportional to 4,947.85, 7,421.78 and 1,250.09

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Solution

The fourth proportional to 4,947.85, 7,421.78 and 1,250.09 is: 1,875.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.85 : 7,421.78 = 1,250.09 : x
  2. Step 2: Convert to fraction form
    4,947.85/7,421.78 = 1,250.09/x
  3. Step 3: Cross multiply
    4,947.85x = 7,421.78 × 1,250.09
  4. Step 4: Simplify right side
    4,947.85x = 9,277,886.71
  5. Step 5: Solve for x
    x = 9,277,886.71/4,947.85
  6. Step 6: Final answer
    x = 1,875.14

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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.