Home / 6,921.56-10,386.50-2,539.46

Finding the Fourth Proportional to 6,921.56, 10,386.50 and 2,539.46

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Solution

The fourth proportional to 6,921.56, 10,386.50 and 2,539.46 is: 3,810.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.56 : 10,386.50 = 2,539.46 : x
  2. Step 2: Convert to fraction form
    6,921.56/10,386.50 = 2,539.46/x
  3. Step 3: Cross multiply
    6,921.56x = 10,386.50 × 2,539.46
  4. Step 4: Simplify right side
    6,921.56x = 26,376,114.56
  5. Step 5: Solve for x
    x = 26,376,114.56/6,921.56
  6. Step 6: Final answer
    x = 3,810.72

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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.