Home / 7,135.29-10,705.46-3,186.18

Finding the Fourth Proportional to 7,135.29, 10,705.46 and 3,186.18

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Solution

The fourth proportional to 7,135.29, 10,705.46 and 3,186.18 is: 4,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.29 : 10,705.46 = 3,186.18 : x
  2. Step 2: Convert to fraction form
    7,135.29/10,705.46 = 3,186.18/x
  3. Step 3: Cross multiply
    7,135.29x = 10,705.46 × 3,186.18
  4. Step 4: Simplify right side
    7,135.29x = 34,109,506.61
  5. Step 5: Solve for x
    x = 34,109,506.61/7,135.29
  6. Step 6: Final answer
    x = 4,780.40

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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.