Home / 2,267.64-3,129.18-1,259.40

Finding the Fourth Proportional to 2,267.64, 3,129.18 and 1,259.40

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Solution

The fourth proportional to 2,267.64, 3,129.18 and 1,259.40 is: 1,737.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.64 : 3,129.18 = 1,259.40 : x
  2. Step 2: Convert to fraction form
    2,267.64/3,129.18 = 1,259.40/x
  3. Step 3: Cross multiply
    2,267.64x = 3,129.18 × 1,259.40
  4. Step 4: Simplify right side
    2,267.64x = 3,940,889.29
  5. Step 5: Solve for x
    x = 3,940,889.29/2,267.64
  6. Step 6: Final answer
    x = 1,737.88

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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.