Home / 7,719.06-10,648.40-4,881.66

Finding the Fourth Proportional to 7,719.06, 10,648.40 and 4,881.66

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Solution

The fourth proportional to 7,719.06, 10,648.40 and 4,881.66 is: 6,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.06 : 10,648.40 = 4,881.66 : x
  2. Step 2: Convert to fraction form
    7,719.06/10,648.40 = 4,881.66/x
  3. Step 3: Cross multiply
    7,719.06x = 10,648.40 × 4,881.66
  4. Step 4: Simplify right side
    7,719.06x = 51,981,868.34
  5. Step 5: Solve for x
    x = 51,981,868.34/7,719.06
  6. Step 6: Final answer
    x = 6,734.22

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1.5x scale

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.