Home / 1,767.30-2,439.14-1,271.58

Finding the Fourth Proportional to 1,767.30, 2,439.14 and 1,271.58

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Solution

The fourth proportional to 1,767.30, 2,439.14 and 1,271.58 is: 1,754.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.30 : 2,439.14 = 1,271.58 : x
  2. Step 2: Convert to fraction form
    1,767.30/2,439.14 = 1,271.58/x
  3. Step 3: Cross multiply
    1,767.30x = 2,439.14 × 1,271.58
  4. Step 4: Simplify right side
    1,767.30x = 3,101,561.64
  5. Step 5: Solve for x
    x = 3,101,561.64/1,767.30
  6. Step 6: Final answer
    x = 1,754.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.