Home / 2,767.76-4,153.38-1,124.32

Finding the Fourth Proportional to 2,767.76, 4,153.38 and 1,124.32

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Solution

The fourth proportional to 2,767.76, 4,153.38 and 1,124.32 is: 1,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.76 : 4,153.38 = 1,124.32 : x
  2. Step 2: Convert to fraction form
    2,767.76/4,153.38 = 1,124.32/x
  3. Step 3: Cross multiply
    2,767.76x = 4,153.38 × 1,124.32
  4. Step 4: Simplify right side
    2,767.76x = 4,669,728.20
  5. Step 5: Solve for x
    x = 4,669,728.20/2,767.76
  6. Step 6: Final answer
    x = 1,687.19

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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.