Home / 6,386.48-9,580.40-2,689.53

Finding the Fourth Proportional to 6,386.48, 9,580.40 and 2,689.53

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Solution

The fourth proportional to 6,386.48, 9,580.40 and 2,689.53 is: 4,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.48 : 9,580.40 = 2,689.53 : x
  2. Step 2: Convert to fraction form
    6,386.48/9,580.40 = 2,689.53/x
  3. Step 3: Cross multiply
    6,386.48x = 9,580.40 × 2,689.53
  4. Step 4: Simplify right side
    6,386.48x = 25,766,759.76
  5. Step 5: Solve for x
    x = 25,766,759.76/6,386.48
  6. Step 6: Final answer
    x = 4,034.58

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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.