Home / 6,862.79-10,290.48-2,181.53

Finding the Fourth Proportional to 6,862.79, 10,290.48 and 2,181.53

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Solution

The fourth proportional to 6,862.79, 10,290.48 and 2,181.53 is: 3,271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.79 : 10,290.48 = 2,181.53 : x
  2. Step 2: Convert to fraction form
    6,862.79/10,290.48 = 2,181.53/x
  3. Step 3: Cross multiply
    6,862.79x = 10,290.48 × 2,181.53
  4. Step 4: Simplify right side
    6,862.79x = 22,448,990.83
  5. Step 5: Solve for x
    x = 22,448,990.83/6,862.79
  6. Step 6: Final answer
    x = 3,271.12

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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.