Home / 4,947.18-7,421.79-1,660.18

Finding the Fourth Proportional to 4,947.18, 7,421.79 and 1,660.18

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Solution

The fourth proportional to 4,947.18, 7,421.79 and 1,660.18 is: 2,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.18 : 7,421.79 = 1,660.18 : x
  2. Step 2: Convert to fraction form
    4,947.18/7,421.79 = 1,660.18/x
  3. Step 3: Cross multiply
    4,947.18x = 7,421.79 × 1,660.18
  4. Step 4: Simplify right side
    4,947.18x = 12,321,533.22
  5. Step 5: Solve for x
    x = 12,321,533.22/4,947.18
  6. Step 6: Final answer
    x = 2,490.62

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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.