Home / 2,319.29-3,200.66-1,271.34

Finding the Fourth Proportional to 2,319.29, 3,200.66 and 1,271.34

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Solution

The fourth proportional to 2,319.29, 3,200.66 and 1,271.34 is: 1,754.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.29 : 3,200.66 = 1,271.34 : x
  2. Step 2: Convert to fraction form
    2,319.29/3,200.66 = 1,271.34/x
  3. Step 3: Cross multiply
    2,319.29x = 3,200.66 × 1,271.34
  4. Step 4: Simplify right side
    2,319.29x = 4,069,120.73
  5. Step 5: Solve for x
    x = 4,069,120.73/2,319.29
  6. Step 6: Final answer
    x = 1,754.47

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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.