Home / 3,654.23-5,478.80-1,573.61

Finding the Fourth Proportional to 3,654.23, 5,478.80 and 1,573.61

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Solution

The fourth proportional to 3,654.23, 5,478.80 and 1,573.61 is: 2,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.23 : 5,478.80 = 1,573.61 : x
  2. Step 2: Convert to fraction form
    3,654.23/5,478.80 = 1,573.61/x
  3. Step 3: Cross multiply
    3,654.23x = 5,478.80 × 1,573.61
  4. Step 4: Simplify right side
    3,654.23x = 8,621,459.21
  5. Step 5: Solve for x
    x = 8,621,459.21/3,654.23
  6. Step 6: Final answer
    x = 2,359.31

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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.