Home / 4,947.66-7,421.88-1,660.74

Finding the Fourth Proportional to 4,947.66, 7,421.88 and 1,660.74

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Solution

The fourth proportional to 4,947.66, 7,421.88 and 1,660.74 is: 2,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.66 : 7,421.88 = 1,660.74 : x
  2. Step 2: Convert to fraction form
    4,947.66/7,421.88 = 1,660.74/x
  3. Step 3: Cross multiply
    4,947.66x = 7,421.88 × 1,660.74
  4. Step 4: Simplify right side
    4,947.66x = 12,325,812.99
  5. Step 5: Solve for x
    x = 12,325,812.99/4,947.66
  6. Step 6: Final answer
    x = 2,491.24

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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.