Home / 3,156-4,734.55-1,306.08

Finding the Fourth Proportional to 3,156, 4,734.55 and 1,306.08

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Solution

The fourth proportional to 3,156, 4,734.55 and 1,306.08 is: 1,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156 : 4,734.55 = 1,306.08 : x
  2. Step 2: Convert to fraction form
    3,156/4,734.55 = 1,306.08/x
  3. Step 3: Cross multiply
    3,156x = 4,734.55 × 1,306.08
  4. Step 4: Simplify right side
    3,156x = 6,183,701.06
  5. Step 5: Solve for x
    x = 6,183,701.06/3,156
  6. Step 6: Final answer
    x = 1,959.35

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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.