Home / 5,426.10-7,488.05-3,187.98

Finding the Fourth Proportional to 5,426.10, 7,488.05 and 3,187.98

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Solution

The fourth proportional to 5,426.10, 7,488.05 and 3,187.98 is: 4,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.10 : 7,488.05 = 3,187.98 : x
  2. Step 2: Convert to fraction form
    5,426.10/7,488.05 = 3,187.98/x
  3. Step 3: Cross multiply
    5,426.10x = 7,488.05 × 3,187.98
  4. Step 4: Simplify right side
    5,426.10x = 23,871,737.70
  5. Step 5: Solve for x
    x = 23,871,737.70/5,426.10
  6. Step 6: Final answer
    x = 4,399.43

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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.