Home / 3,045.80-4,203.20-1,719.48

Finding the Fourth Proportional to 3,045.80, 4,203.20 and 1,719.48

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Solution

The fourth proportional to 3,045.80, 4,203.20 and 1,719.48 is: 2,372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.80 : 4,203.20 = 1,719.48 : x
  2. Step 2: Convert to fraction form
    3,045.80/4,203.20 = 1,719.48/x
  3. Step 3: Cross multiply
    3,045.80x = 4,203.20 × 1,719.48
  4. Step 4: Simplify right side
    3,045.80x = 7,227,318.34
  5. Step 5: Solve for x
    x = 7,227,318.34/3,045.80
  6. Step 6: Final answer
    x = 2,372.88

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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.