Home / 3,947.73-5,454.40-3,114.77

Finding the Fourth Proportional to 3,947.73, 5,454.40 and 3,114.77

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Solution

The fourth proportional to 3,947.73, 5,454.40 and 3,114.77 is: 4,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.73 : 5,454.40 = 3,114.77 : x
  2. Step 2: Convert to fraction form
    3,947.73/5,454.40 = 3,114.77/x
  3. Step 3: Cross multiply
    3,947.73x = 5,454.40 × 3,114.77
  4. Step 4: Simplify right side
    3,947.73x = 16,989,158.64
  5. Step 5: Solve for x
    x = 16,989,158.64/3,947.73
  6. Step 6: Final answer
    x = 4,303.53

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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.