Home / 3,439.58-4,746.63-1,947.47

Finding the Fourth Proportional to 3,439.58, 4,746.63 and 1,947.47

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Solution

The fourth proportional to 3,439.58, 4,746.63 and 1,947.47 is: 2,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.58 : 4,746.63 = 1,947.47 : x
  2. Step 2: Convert to fraction form
    3,439.58/4,746.63 = 1,947.47/x
  3. Step 3: Cross multiply
    3,439.58x = 4,746.63 × 1,947.47
  4. Step 4: Simplify right side
    3,439.58x = 9,243,895.79
  5. Step 5: Solve for x
    x = 9,243,895.79/3,439.58
  6. Step 6: Final answer
    x = 2,687.51

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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.