Home / 3,389.12-4,668-2,947.52

Finding the Fourth Proportional to 3,389.12, 4,668 and 2,947.52

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Solution

The fourth proportional to 3,389.12, 4,668 and 2,947.52 is: 4,059.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.12 : 4,668 = 2,947.52 : x
  2. Step 2: Convert to fraction form
    3,389.12/4,668 = 2,947.52/x
  3. Step 3: Cross multiply
    3,389.12x = 4,668 × 2,947.52
  4. Step 4: Simplify right side
    3,389.12x = 13,759,023.36
  5. Step 5: Solve for x
    x = 13,759,023.36/3,389.12
  6. Step 6: Final answer
    x = 4,059.76

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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.