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Finding the Fourth Proportional to 2,974.60, 4,460.10 and 1,330.84

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Solution

The fourth proportional to 2,974.60, 4,460.10 and 1,330.84 is: 1,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.60 : 4,460.10 = 1,330.84 : x
  2. Step 2: Convert to fraction form
    2,974.60/4,460.10 = 1,330.84/x
  3. Step 3: Cross multiply
    2,974.60x = 4,460.10 × 1,330.84
  4. Step 4: Simplify right side
    2,974.60x = 5,935,679.48
  5. Step 5: Solve for x
    x = 5,935,679.48/2,974.60
  6. Step 6: Final answer
    x = 1,995.45

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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.