Home / 4,947.60-7,421.40-1,249.84

Finding the Fourth Proportional to 4,947.60, 7,421.40 and 1,249.84

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Solution

The fourth proportional to 4,947.60, 7,421.40 and 1,249.84 is: 1,874.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.60 : 7,421.40 = 1,249.84 : x
  2. Step 2: Convert to fraction form
    4,947.60/7,421.40 = 1,249.84/x
  3. Step 3: Cross multiply
    4,947.60x = 7,421.40 × 1,249.84
  4. Step 4: Simplify right side
    4,947.60x = 9,275,562.58
  5. Step 5: Solve for x
    x = 9,275,562.58/4,947.60
  6. Step 6: Final answer
    x = 1,874.76

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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.