Home / 8,780.16-13,166.19-2,935.20

Finding the Fourth Proportional to 8,780.16, 13,166.19 and 2,935.20

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Solution

The fourth proportional to 8,780.16, 13,166.19 and 2,935.20 is: 4,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.16 : 13,166.19 = 2,935.20 : x
  2. Step 2: Convert to fraction form
    8,780.16/13,166.19 = 2,935.20/x
  3. Step 3: Cross multiply
    8,780.16x = 13,166.19 × 2,935.20
  4. Step 4: Simplify right side
    8,780.16x = 38,645,400.89
  5. Step 5: Solve for x
    x = 38,645,400.89/8,780.16
  6. Step 6: Final answer
    x = 4,401.45

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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.