Home / 3,562.20-4,915.74-1,947.05

Finding the Fourth Proportional to 3,562.20, 4,915.74 and 1,947.05

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Solution

The fourth proportional to 3,562.20, 4,915.74 and 1,947.05 is: 2,686.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.20 : 4,915.74 = 1,947.05 : x
  2. Step 2: Convert to fraction form
    3,562.20/4,915.74 = 1,947.05/x
  3. Step 3: Cross multiply
    3,562.20x = 4,915.74 × 1,947.05
  4. Step 4: Simplify right side
    3,562.20x = 9,571,191.57
  5. Step 5: Solve for x
    x = 9,571,191.57/3,562.20
  6. Step 6: Final answer
    x = 2,686.88

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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.