Home / 2,760.10-4,143.09-1,117.72

Finding the Fourth Proportional to 2,760.10, 4,143.09 and 1,117.72

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Solution

The fourth proportional to 2,760.10, 4,143.09 and 1,117.72 is: 1,677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.10 : 4,143.09 = 1,117.72 : x
  2. Step 2: Convert to fraction form
    2,760.10/4,143.09 = 1,117.72/x
  3. Step 3: Cross multiply
    2,760.10x = 4,143.09 × 1,117.72
  4. Step 4: Simplify right side
    2,760.10x = 4,630,793.84
  5. Step 5: Solve for x
    x = 4,630,793.84/2,760.10
  6. Step 6: Final answer
    x = 1,677.77

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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.