Home / 7,948.77-11,915.86-2,751.01

Finding the Fourth Proportional to 7,948.77, 11,915.86 and 2,751.01

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Solution

The fourth proportional to 7,948.77, 11,915.86 and 2,751.01 is: 4,123.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.77 : 11,915.86 = 2,751.01 : x
  2. Step 2: Convert to fraction form
    7,948.77/11,915.86 = 2,751.01/x
  3. Step 3: Cross multiply
    7,948.77x = 11,915.86 × 2,751.01
  4. Step 4: Simplify right side
    7,948.77x = 32,780,636.26
  5. Step 5: Solve for x
    x = 32,780,636.26/7,948.77
  6. Step 6: Final answer
    x = 4,123.99

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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.