Home / 5,010.13-6,913.15-3,121.41

Finding the Fourth Proportional to 5,010.13, 6,913.15 and 3,121.41

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Solution

The fourth proportional to 5,010.13, 6,913.15 and 3,121.41 is: 4,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.13 : 6,913.15 = 3,121.41 : x
  2. Step 2: Convert to fraction form
    5,010.13/6,913.15 = 3,121.41/x
  3. Step 3: Cross multiply
    5,010.13x = 6,913.15 × 3,121.41
  4. Step 4: Simplify right side
    5,010.13x = 21,578,775.54
  5. Step 5: Solve for x
    x = 21,578,775.54/5,010.13
  6. Step 6: Final answer
    x = 4,307.03

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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.