Home / 2,316.98-3,198-1,572.18

Finding the Fourth Proportional to 2,316.98, 3,198 and 1,572.18

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Solution

The fourth proportional to 2,316.98, 3,198 and 1,572.18 is: 2,169.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.98 : 3,198 = 1,572.18 : x
  2. Step 2: Convert to fraction form
    2,316.98/3,198 = 1,572.18/x
  3. Step 3: Cross multiply
    2,316.98x = 3,198 × 1,572.18
  4. Step 4: Simplify right side
    2,316.98x = 5,027,831.64
  5. Step 5: Solve for x
    x = 5,027,831.64/2,316.98
  6. Step 6: Final answer
    x = 2,169.99

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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.