Home / 1,758.92-2,427.35-972.98

Finding the Fourth Proportional to 1,758.92, 2,427.35 and 972.98

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Solution

The fourth proportional to 1,758.92, 2,427.35 and 972.98 is: 1,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.92 : 2,427.35 = 972.98 : x
  2. Step 2: Convert to fraction form
    1,758.92/2,427.35 = 972.98/x
  3. Step 3: Cross multiply
    1,758.92x = 2,427.35 × 972.98
  4. Step 4: Simplify right side
    1,758.92x = 2,361,758.14
  5. Step 5: Solve for x
    x = 2,361,758.14/1,758.92
  6. Step 6: Final answer
    x = 1,342.73

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1.5x scale

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.