Home / 5,028.47-6,934.74-3,140.22

Finding the Fourth Proportional to 5,028.47, 6,934.74 and 3,140.22

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Solution

The fourth proportional to 5,028.47, 6,934.74 and 3,140.22 is: 4,330.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.47 : 6,934.74 = 3,140.22 : x
  2. Step 2: Convert to fraction form
    5,028.47/6,934.74 = 3,140.22/x
  3. Step 3: Cross multiply
    5,028.47x = 6,934.74 × 3,140.22
  4. Step 4: Simplify right side
    5,028.47x = 21,776,609.24
  5. Step 5: Solve for x
    x = 21,776,609.24/5,028.47
  6. Step 6: Final answer
    x = 4,330.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.