Home / 7,187.18-10,781.08-2,507.66

Finding the Fourth Proportional to 7,187.18, 10,781.08 and 2,507.66

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Solution

The fourth proportional to 7,187.18, 10,781.08 and 2,507.66 is: 3,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.18 : 10,781.08 = 2,507.66 : x
  2. Step 2: Convert to fraction form
    7,187.18/10,781.08 = 2,507.66/x
  3. Step 3: Cross multiply
    7,187.18x = 10,781.08 × 2,507.66
  4. Step 4: Simplify right side
    7,187.18x = 27,035,303.76
  5. Step 5: Solve for x
    x = 27,035,303.76/7,187.18
  6. Step 6: Final answer
    x = 3,761.60

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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.