Home / 3,113.79-4,675.35-2,679.77

Finding the Fourth Proportional to 3,113.79, 4,675.35 and 2,679.77

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Solution

The fourth proportional to 3,113.79, 4,675.35 and 2,679.77 is: 4,023.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.79 : 4,675.35 = 2,679.77 : x
  2. Step 2: Convert to fraction form
    3,113.79/4,675.35 = 2,679.77/x
  3. Step 3: Cross multiply
    3,113.79x = 4,675.35 × 2,679.77
  4. Step 4: Simplify right side
    3,113.79x = 12,528,839.29
  5. Step 5: Solve for x
    x = 12,528,839.29/3,113.79
  6. Step 6: Final answer
    x = 4,023.66

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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.