Home / 3,049.31-4,205.90-1,870.85

Finding the Fourth Proportional to 3,049.31, 4,205.90 and 1,870.85

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Solution

The fourth proportional to 3,049.31, 4,205.90 and 1,870.85 is: 2,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.31 : 4,205.90 = 1,870.85 : x
  2. Step 2: Convert to fraction form
    3,049.31/4,205.90 = 1,870.85/x
  3. Step 3: Cross multiply
    3,049.31x = 4,205.90 × 1,870.85
  4. Step 4: Simplify right side
    3,049.31x = 7,868,591.66
  5. Step 5: Solve for x
    x = 7,868,591.66/3,049.31
  6. Step 6: Final answer
    x = 2,580.45

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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.