Home / 2,872.19-4,312.10-1,486.42

Finding the Fourth Proportional to 2,872.19, 4,312.10 and 1,486.42

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Solution

The fourth proportional to 2,872.19, 4,312.10 and 1,486.42 is: 2,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.19 : 4,312.10 = 1,486.42 : x
  2. Step 2: Convert to fraction form
    2,872.19/4,312.10 = 1,486.42/x
  3. Step 3: Cross multiply
    2,872.19x = 4,312.10 × 1,486.42
  4. Step 4: Simplify right side
    2,872.19x = 6,409,584.62
  5. Step 5: Solve for x
    x = 6,409,584.62/2,872.19
  6. Step 6: Final answer
    x = 2,231.60

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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.