Home / 2,947.30-4,066.93-1,620.92

Finding the Fourth Proportional to 2,947.30, 4,066.93 and 1,620.92

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Solution

The fourth proportional to 2,947.30, 4,066.93 and 1,620.92 is: 2,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.30 : 4,066.93 = 1,620.92 : x
  2. Step 2: Convert to fraction form
    2,947.30/4,066.93 = 1,620.92/x
  3. Step 3: Cross multiply
    2,947.30x = 4,066.93 × 1,620.92
  4. Step 4: Simplify right side
    2,947.30x = 6,592,174.29
  5. Step 5: Solve for x
    x = 6,592,174.29/2,947.30
  6. Step 6: Final answer
    x = 2,236.68

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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.