Home / 7,085.18-10,627.79-3,386.57

Finding the Fourth Proportional to 7,085.18, 10,627.79 and 3,386.57

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Solution

The fourth proportional to 7,085.18, 10,627.79 and 3,386.57 is: 5,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.18 : 10,627.79 = 3,386.57 : x
  2. Step 2: Convert to fraction form
    7,085.18/10,627.79 = 3,386.57/x
  3. Step 3: Cross multiply
    7,085.18x = 10,627.79 × 3,386.57
  4. Step 4: Simplify right side
    7,085.18x = 35,991,754.78
  5. Step 5: Solve for x
    x = 35,991,754.78/7,085.18
  6. Step 6: Final answer
    x = 5,079.86

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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.