Home / 2,370.80-3,557.18-985.16

Finding the Fourth Proportional to 2,370.80, 3,557.18 and 985.16

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Solution

The fourth proportional to 2,370.80, 3,557.18 and 985.16 is: 1,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.80 : 3,557.18 = 985.16 : x
  2. Step 2: Convert to fraction form
    2,370.80/3,557.18 = 985.16/x
  3. Step 3: Cross multiply
    2,370.80x = 3,557.18 × 985.16
  4. Step 4: Simplify right side
    2,370.80x = 3,504,402.80
  5. Step 5: Solve for x
    x = 3,504,402.80/2,370.80
  6. Step 6: Final answer
    x = 1,478.15

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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.