Home / 3,554.28-5,333.80-1,245.78

Finding the Fourth Proportional to 3,554.28, 5,333.80 and 1,245.78

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Solution

The fourth proportional to 3,554.28, 5,333.80 and 1,245.78 is: 1,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.28 : 5,333.80 = 1,245.78 : x
  2. Step 2: Convert to fraction form
    3,554.28/5,333.80 = 1,245.78/x
  3. Step 3: Cross multiply
    3,554.28x = 5,333.80 × 1,245.78
  4. Step 4: Simplify right side
    3,554.28x = 6,644,741.36
  5. Step 5: Solve for x
    x = 6,644,741.36/3,554.28
  6. Step 6: Final answer
    x = 1,869.50

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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.