Home / 2,947.20-4,417.68-1,097.16

Finding the Fourth Proportional to 2,947.20, 4,417.68 and 1,097.16

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Solution

The fourth proportional to 2,947.20, 4,417.68 and 1,097.16 is: 1,644.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.20 : 4,417.68 = 1,097.16 : x
  2. Step 2: Convert to fraction form
    2,947.20/4,417.68 = 1,097.16/x
  3. Step 3: Cross multiply
    2,947.20x = 4,417.68 × 1,097.16
  4. Step 4: Simplify right side
    2,947.20x = 4,846,901.79
  5. Step 5: Solve for x
    x = 4,846,901.79/2,947.20
  6. Step 6: Final answer
    x = 1,644.58

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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.