Home / 1,767.28-2,645.72-1,307.11

Finding the Fourth Proportional to 1,767.28, 2,645.72 and 1,307.11

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Solution

The fourth proportional to 1,767.28, 2,645.72 and 1,307.11 is: 1,956.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.28 : 2,645.72 = 1,307.11 : x
  2. Step 2: Convert to fraction form
    1,767.28/2,645.72 = 1,307.11/x
  3. Step 3: Cross multiply
    1,767.28x = 2,645.72 × 1,307.11
  4. Step 4: Simplify right side
    1,767.28x = 3,458,247.07
  5. Step 5: Solve for x
    x = 3,458,247.07/1,767.28
  6. Step 6: Final answer
    x = 1,956.82

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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.