Home / 2,872.08-4,308.96-1,140.96

Finding the Fourth Proportional to 2,872.08, 4,308.96 and 1,140.96

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Solution

The fourth proportional to 2,872.08, 4,308.96 and 1,140.96 is: 1,711.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.08 : 4,308.96 = 1,140.96 : x
  2. Step 2: Convert to fraction form
    2,872.08/4,308.96 = 1,140.96/x
  3. Step 3: Cross multiply
    2,872.08x = 4,308.96 × 1,140.96
  4. Step 4: Simplify right side
    2,872.08x = 4,916,351.00
  5. Step 5: Solve for x
    x = 4,916,351.00/2,872.08
  6. Step 6: Final answer
    x = 1,711.77

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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.