Home / 7,719.32-10,648.74-4,881.91

Finding the Fourth Proportional to 7,719.32, 10,648.74 and 4,881.91

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Solution

The fourth proportional to 7,719.32, 10,648.74 and 4,881.91 is: 6,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.32 : 10,648.74 = 4,881.91 : x
  2. Step 2: Convert to fraction form
    7,719.32/10,648.74 = 4,881.91/x
  3. Step 3: Cross multiply
    7,719.32x = 10,648.74 × 4,881.91
  4. Step 4: Simplify right side
    7,719.32x = 51,986,190.29
  5. Step 5: Solve for x
    x = 51,986,190.29/7,719.32
  6. Step 6: Final answer
    x = 6,734.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.