Home / 2,675.79-3,688.85-2,306.70

Finding the Fourth Proportional to 2,675.79, 3,688.85 and 2,306.70

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Solution

The fourth proportional to 2,675.79, 3,688.85 and 2,306.70 is: 3,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.79 : 3,688.85 = 2,306.70 : x
  2. Step 2: Convert to fraction form
    2,675.79/3,688.85 = 2,306.70/x
  3. Step 3: Cross multiply
    2,675.79x = 3,688.85 × 2,306.70
  4. Step 4: Simplify right side
    2,675.79x = 8,509,058.76
  5. Step 5: Solve for x
    x = 8,509,058.76/2,675.79
  6. Step 6: Final answer
    x = 3,180.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.