Home / 3,439.67-4,746.84-1,947.81

Finding the Fourth Proportional to 3,439.67, 4,746.84 and 1,947.81

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Solution

The fourth proportional to 3,439.67, 4,746.84 and 1,947.81 is: 2,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.67 : 4,746.84 = 1,947.81 : x
  2. Step 2: Convert to fraction form
    3,439.67/4,746.84 = 1,947.81/x
  3. Step 3: Cross multiply
    3,439.67x = 4,746.84 × 1,947.81
  4. Step 4: Simplify right side
    3,439.67x = 9,245,952.92
  5. Step 5: Solve for x
    x = 9,245,952.92/3,439.67
  6. Step 6: Final answer
    x = 2,688.04

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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.