Home / 6,719.96-10,077.53-1,974.78

Finding the Fourth Proportional to 6,719.96, 10,077.53 and 1,974.78

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Solution

The fourth proportional to 6,719.96, 10,077.53 and 1,974.78 is: 2,961.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,719.96 : 10,077.53 = 1,974.78 : x
  2. Step 2: Convert to fraction form
    6,719.96/10,077.53 = 1,974.78/x
  3. Step 3: Cross multiply
    6,719.96x = 10,077.53 × 1,974.78
  4. Step 4: Simplify right side
    6,719.96x = 19,900,894.82
  5. Step 5: Solve for x
    x = 19,900,894.82/6,719.96
  6. Step 6: Final answer
    x = 2,961.46

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1.5x scale

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.