Home / 7,187.40-10,777.18-2,506.15

Finding the Fourth Proportional to 7,187.40, 10,777.18 and 2,506.15

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Solution

The fourth proportional to 7,187.40, 10,777.18 and 2,506.15 is: 3,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.40 : 10,777.18 = 2,506.15 : x
  2. Step 2: Convert to fraction form
    7,187.40/10,777.18 = 2,506.15/x
  3. Step 3: Cross multiply
    7,187.40x = 10,777.18 × 2,506.15
  4. Step 4: Simplify right side
    7,187.40x = 27,009,229.66
  5. Step 5: Solve for x
    x = 27,009,229.66/7,187.40
  6. Step 6: Final answer
    x = 3,757.86

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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.