Home / 5,098.15-7,649.39-1,980.36

Finding the Fourth Proportional to 5,098.15, 7,649.39 and 1,980.36

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Solution

The fourth proportional to 5,098.15, 7,649.39 and 1,980.36 is: 2,971.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,098.15 : 7,649.39 = 1,980.36 : x
  2. Step 2: Convert to fraction form
    5,098.15/7,649.39 = 1,980.36/x
  3. Step 3: Cross multiply
    5,098.15x = 7,649.39 × 1,980.36
  4. Step 4: Simplify right side
    5,098.15x = 15,148,545.98
  5. Step 5: Solve for x
    x = 15,148,545.98/5,098.15
  6. Step 6: Final answer
    x = 2,971.38

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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.