Home / 10,581.16-15,870.12-2,790.58

Finding the Fourth Proportional to 10,581.16, 15,870.12 and 2,790.58

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Solution

The fourth proportional to 10,581.16, 15,870.12 and 2,790.58 is: 4,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.16 : 15,870.12 = 2,790.58 : x
  2. Step 2: Convert to fraction form
    10,581.16/15,870.12 = 2,790.58/x
  3. Step 3: Cross multiply
    10,581.16x = 15,870.12 × 2,790.58
  4. Step 4: Simplify right side
    10,581.16x = 44,286,839.47
  5. Step 5: Solve for x
    x = 44,286,839.47/10,581.16
  6. Step 6: Final answer
    x = 4,185.44

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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.