Home / 2,762.17-4,143.22-1,118.70

Finding the Fourth Proportional to 2,762.17, 4,143.22 and 1,118.70

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Solution

The fourth proportional to 2,762.17, 4,143.22 and 1,118.70 is: 1,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.17 : 4,143.22 = 1,118.70 : x
  2. Step 2: Convert to fraction form
    2,762.17/4,143.22 = 1,118.70/x
  3. Step 3: Cross multiply
    2,762.17x = 4,143.22 × 1,118.70
  4. Step 4: Simplify right side
    2,762.17x = 4,635,017.42
  5. Step 5: Solve for x
    x = 4,635,017.42/2,762.17
  6. Step 6: Final answer
    x = 1,678.04

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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.