Home / 1,775.19-2,659.51-1,188.89

Finding the Fourth Proportional to 1,775.19, 2,659.51 and 1,188.89

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Solution

The fourth proportional to 1,775.19, 2,659.51 and 1,188.89 is: 1,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.19 : 2,659.51 = 1,188.89 : x
  2. Step 2: Convert to fraction form
    1,775.19/2,659.51 = 1,188.89/x
  3. Step 3: Cross multiply
    1,775.19x = 2,659.51 × 1,188.89
  4. Step 4: Simplify right side
    1,775.19x = 3,161,864.84
  5. Step 5: Solve for x
    x = 3,161,864.84/1,775.19
  6. Step 6: Final answer
    x = 1,781.14

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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.