Home / 2,947.61-4,421.41-999.83

Finding the Fourth Proportional to 2,947.61, 4,421.41 and 999.83

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Solution

The fourth proportional to 2,947.61, 4,421.41 and 999.83 is: 1,499.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.61 : 4,421.41 = 999.83 : x
  2. Step 2: Convert to fraction form
    2,947.61/4,421.41 = 999.83/x
  3. Step 3: Cross multiply
    2,947.61x = 4,421.41 × 999.83
  4. Step 4: Simplify right side
    2,947.61x = 4,420,636.25
  5. Step 5: Solve for x
    x = 4,420,636.25/2,947.61
  6. Step 6: Final answer
    x = 1,499.74

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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.