Home / 5,106.06-7,045.13-2,980.39

Finding the Fourth Proportional to 5,106.06, 7,045.13 and 2,980.39

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Solution

The fourth proportional to 5,106.06, 7,045.13 and 2,980.39 is: 4,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.06 : 7,045.13 = 2,980.39 : x
  2. Step 2: Convert to fraction form
    5,106.06/7,045.13 = 2,980.39/x
  3. Step 3: Cross multiply
    5,106.06x = 7,045.13 × 2,980.39
  4. Step 4: Simplify right side
    5,106.06x = 20,997,201.47
  5. Step 5: Solve for x
    x = 20,997,201.47/5,106.06
  6. Step 6: Final answer
    x = 4,112.21

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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.