Home / 3,428.06-5,117.28-3,012.89

Finding the Fourth Proportional to 3,428.06, 5,117.28 and 3,012.89

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Solution

The fourth proportional to 3,428.06, 5,117.28 and 3,012.89 is: 4,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.06 : 5,117.28 = 3,012.89 : x
  2. Step 2: Convert to fraction form
    3,428.06/5,117.28 = 3,012.89/x
  3. Step 3: Cross multiply
    3,428.06x = 5,117.28 × 3,012.89
  4. Step 4: Simplify right side
    3,428.06x = 15,417,776.15
  5. Step 5: Solve for x
    x = 15,417,776.15/3,428.06
  6. Step 6: Final answer
    x = 4,497.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.