Home / 2,877.12-4,311.24-1,316.16

Finding the Fourth Proportional to 2,877.12, 4,311.24 and 1,316.16

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Solution

The fourth proportional to 2,877.12, 4,311.24 and 1,316.16 is: 1,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.12 : 4,311.24 = 1,316.16 : x
  2. Step 2: Convert to fraction form
    2,877.12/4,311.24 = 1,316.16/x
  3. Step 3: Cross multiply
    2,877.12x = 4,311.24 × 1,316.16
  4. Step 4: Simplify right side
    2,877.12x = 5,674,281.64
  5. Step 5: Solve for x
    x = 5,674,281.64/2,877.12
  6. Step 6: Final answer
    x = 1,972.21

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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.