Home / 1,758.57-2,426.85-972.60

Finding the Fourth Proportional to 1,758.57, 2,426.85 and 972.60

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Solution

The fourth proportional to 1,758.57, 2,426.85 and 972.60 is: 1,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.57 : 2,426.85 = 972.60 : x
  2. Step 2: Convert to fraction form
    1,758.57/2,426.85 = 972.60/x
  3. Step 3: Cross multiply
    1,758.57x = 2,426.85 × 972.60
  4. Step 4: Simplify right side
    1,758.57x = 2,360,354.31
  5. Step 5: Solve for x
    x = 2,360,354.31/1,758.57
  6. Step 6: Final answer
    x = 1,342.20

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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.