Home / 2,912.20-4,368.30-1,454.20

Finding the Fourth Proportional to 2,912.20, 4,368.30 and 1,454.20

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Solution

The fourth proportional to 2,912.20, 4,368.30 and 1,454.20 is: 2,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.20 : 4,368.30 = 1,454.20 : x
  2. Step 2: Convert to fraction form
    2,912.20/4,368.30 = 1,454.20/x
  3. Step 3: Cross multiply
    2,912.20x = 4,368.30 × 1,454.20
  4. Step 4: Simplify right side
    2,912.20x = 6,352,381.86
  5. Step 5: Solve for x
    x = 6,352,381.86/2,912.20
  6. Step 6: Final answer
    x = 2,181.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.