Home / 1,619.08-2,234.19-947.04

Finding the Fourth Proportional to 1,619.08, 2,234.19 and 947.04

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Solution

The fourth proportional to 1,619.08, 2,234.19 and 947.04 is: 1,306.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.08 : 2,234.19 = 947.04 : x
  2. Step 2: Convert to fraction form
    1,619.08/2,234.19 = 947.04/x
  3. Step 3: Cross multiply
    1,619.08x = 2,234.19 × 947.04
  4. Step 4: Simplify right side
    1,619.08x = 2,115,867.30
  5. Step 5: Solve for x
    x = 2,115,867.30/1,619.08
  6. Step 6: Final answer
    x = 1,306.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.