Home / 1,731.13-2,595.78-756.09

Finding the Fourth Proportional to 1,731.13, 2,595.78 and 756.09

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Solution

The fourth proportional to 1,731.13, 2,595.78 and 756.09 is: 1,133.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.13 : 2,595.78 = 756.09 : x
  2. Step 2: Convert to fraction form
    1,731.13/2,595.78 = 756.09/x
  3. Step 3: Cross multiply
    1,731.13x = 2,595.78 × 756.09
  4. Step 4: Simplify right side
    1,731.13x = 1,962,643.30
  5. Step 5: Solve for x
    x = 1,962,643.30/1,731.13
  6. Step 6: Final answer
    x = 1,133.74

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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.