Home / 7,085.12-10,627.76-3,386.48

Finding the Fourth Proportional to 7,085.12, 10,627.76 and 3,386.48

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Solution

The fourth proportional to 7,085.12, 10,627.76 and 3,386.48 is: 5,079.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.12 : 10,627.76 = 3,386.48 : x
  2. Step 2: Convert to fraction form
    7,085.12/10,627.76 = 3,386.48/x
  3. Step 3: Cross multiply
    7,085.12x = 10,627.76 × 3,386.48
  4. Step 4: Simplify right side
    7,085.12x = 35,990,696.68
  5. Step 5: Solve for x
    x = 35,990,696.68/7,085.12
  6. Step 6: Final answer
    x = 5,079.76

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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.