Home / 2,159.64-3,239.56-926.18

Finding the Fourth Proportional to 2,159.64, 3,239.56 and 926.18

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Solution

The fourth proportional to 2,159.64, 3,239.56 and 926.18 is: 1,389.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.64 : 3,239.56 = 926.18 : x
  2. Step 2: Convert to fraction form
    2,159.64/3,239.56 = 926.18/x
  3. Step 3: Cross multiply
    2,159.64x = 3,239.56 × 926.18
  4. Step 4: Simplify right side
    2,159.64x = 3,000,415.68
  5. Step 5: Solve for x
    x = 3,000,415.68/2,159.64
  6. Step 6: Final answer
    x = 1,389.31

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1.5x scale

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.