Home / 5,187.49-7,778.94-1,488.88

Finding the Fourth Proportional to 5,187.49, 7,778.94 and 1,488.88

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Solution

The fourth proportional to 5,187.49, 7,778.94 and 1,488.88 is: 2,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.49 : 7,778.94 = 1,488.88 : x
  2. Step 2: Convert to fraction form
    5,187.49/7,778.94 = 1,488.88/x
  3. Step 3: Cross multiply
    5,187.49x = 7,778.94 × 1,488.88
  4. Step 4: Simplify right side
    5,187.49x = 11,581,908.19
  5. Step 5: Solve for x
    x = 11,581,908.19/5,187.49
  6. Step 6: Final answer
    x = 2,232.66

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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.