Home / 3,439.29-4,746.48-1,947.43

Finding the Fourth Proportional to 3,439.29, 4,746.48 and 1,947.43

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Solution

The fourth proportional to 3,439.29, 4,746.48 and 1,947.43 is: 2,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.29 : 4,746.48 = 1,947.43 : x
  2. Step 2: Convert to fraction form
    3,439.29/4,746.48 = 1,947.43/x
  3. Step 3: Cross multiply
    3,439.29x = 4,746.48 × 1,947.43
  4. Step 4: Simplify right side
    3,439.29x = 9,243,440.46
  5. Step 5: Solve for x
    x = 9,243,440.46/3,439.29
  6. Step 6: Final answer
    x = 2,687.60

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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.