Home / 1,758.62-2,426.87-972.68

Finding the Fourth Proportional to 1,758.62, 2,426.87 and 972.68

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Solution

The fourth proportional to 1,758.62, 2,426.87 and 972.68 is: 1,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.62 : 2,426.87 = 972.68 : x
  2. Step 2: Convert to fraction form
    1,758.62/2,426.87 = 972.68/x
  3. Step 3: Cross multiply
    1,758.62x = 2,426.87 × 972.68
  4. Step 4: Simplify right side
    1,758.62x = 2,360,550.91
  5. Step 5: Solve for x
    x = 2,360,550.91/1,758.62
  6. Step 6: Final answer
    x = 1,342.28

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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.