Home / 5,137.47-7,708.95-2,215.53

Finding the Fourth Proportional to 5,137.47, 7,708.95 and 2,215.53

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Solution

The fourth proportional to 5,137.47, 7,708.95 and 2,215.53 is: 3,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.47 : 7,708.95 = 2,215.53 : x
  2. Step 2: Convert to fraction form
    5,137.47/7,708.95 = 2,215.53/x
  3. Step 3: Cross multiply
    5,137.47x = 7,708.95 × 2,215.53
  4. Step 4: Simplify right side
    5,137.47x = 17,079,409.99
  5. Step 5: Solve for x
    x = 17,079,409.99/5,137.47
  6. Step 6: Final answer
    x = 3,324.48

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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.