Home / 2,158.30-3,237.90-926.02

Finding the Fourth Proportional to 2,158.30, 3,237.90 and 926.02

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Solution

The fourth proportional to 2,158.30, 3,237.90 and 926.02 is: 1,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.30 : 3,237.90 = 926.02 : x
  2. Step 2: Convert to fraction form
    2,158.30/3,237.90 = 926.02/x
  3. Step 3: Cross multiply
    2,158.30x = 3,237.90 × 926.02
  4. Step 4: Simplify right side
    2,158.30x = 2,998,360.16
  5. Step 5: Solve for x
    x = 2,998,360.16/2,158.30
  6. Step 6: Final answer
    x = 1,389.22

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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.