Home / 1,729.40-2,594.08-756.20

Finding the Fourth Proportional to 1,729.40, 2,594.08 and 756.20

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Solution

The fourth proportional to 1,729.40, 2,594.08 and 756.20 is: 1,134.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.40 : 2,594.08 = 756.20 : x
  2. Step 2: Convert to fraction form
    1,729.40/2,594.08 = 756.20/x
  3. Step 3: Cross multiply
    1,729.40x = 2,594.08 × 756.20
  4. Step 4: Simplify right side
    1,729.40x = 1,961,643.30
  5. Step 5: Solve for x
    x = 1,961,643.30/1,729.40
  6. Step 6: Final answer
    x = 1,134.29

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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.