Home / 2,761.52-4,143.06-1,117.68

Finding the Fourth Proportional to 2,761.52, 4,143.06 and 1,117.68

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Solution

The fourth proportional to 2,761.52, 4,143.06 and 1,117.68 is: 1,676.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.52 : 4,143.06 = 1,117.68 : x
  2. Step 2: Convert to fraction form
    2,761.52/4,143.06 = 1,117.68/x
  3. Step 3: Cross multiply
    2,761.52x = 4,143.06 × 1,117.68
  4. Step 4: Simplify right side
    2,761.52x = 4,630,615.30
  5. Step 5: Solve for x
    x = 4,630,615.30/2,761.52
  6. Step 6: Final answer
    x = 1,676.84

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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.