Home / 5,490.13-7,574.30-3,602.75

Finding the Fourth Proportional to 5,490.13, 7,574.30 and 3,602.75

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Solution

The fourth proportional to 5,490.13, 7,574.30 and 3,602.75 is: 4,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.13 : 7,574.30 = 3,602.75 : x
  2. Step 2: Convert to fraction form
    5,490.13/7,574.30 = 3,602.75/x
  3. Step 3: Cross multiply
    5,490.13x = 7,574.30 × 3,602.75
  4. Step 4: Simplify right side
    5,490.13x = 27,288,309.33
  5. Step 5: Solve for x
    x = 27,288,309.33/5,490.13
  6. Step 6: Final answer
    x = 4,970.43

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Half scale
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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.