Home / 2,148.31-2,964.86-1,264.65

Finding the Fourth Proportional to 2,148.31, 2,964.86 and 1,264.65

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Solution

The fourth proportional to 2,148.31, 2,964.86 and 1,264.65 is: 1,745.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.31 : 2,964.86 = 1,264.65 : x
  2. Step 2: Convert to fraction form
    2,148.31/2,964.86 = 1,264.65/x
  3. Step 3: Cross multiply
    2,148.31x = 2,964.86 × 1,264.65
  4. Step 4: Simplify right side
    2,148.31x = 3,749,510.20
  5. Step 5: Solve for x
    x = 3,749,510.20/2,148.31
  6. Step 6: Final answer
    x = 1,745.33

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1.5x scale

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.