Home / 2,919.90-4,381.16-1,586.10

Finding the Fourth Proportional to 2,919.90, 4,381.16 and 1,586.10

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Solution

The fourth proportional to 2,919.90, 4,381.16 and 1,586.10 is: 2,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.90 : 4,381.16 = 1,586.10 : x
  2. Step 2: Convert to fraction form
    2,919.90/4,381.16 = 1,586.10/x
  3. Step 3: Cross multiply
    2,919.90x = 4,381.16 × 1,586.10
  4. Step 4: Simplify right side
    2,919.90x = 6,948,949.95
  5. Step 5: Solve for x
    x = 6,948,949.95/2,919.90
  6. Step 6: Final answer
    x = 2,379.86

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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.