Home / 2,151.40-3,225.24-1,283.90

Finding the Fourth Proportional to 2,151.40, 3,225.24 and 1,283.90

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Solution

The fourth proportional to 2,151.40, 3,225.24 and 1,283.90 is: 1,924.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.40 : 3,225.24 = 1,283.90 : x
  2. Step 2: Convert to fraction form
    2,151.40/3,225.24 = 1,283.90/x
  3. Step 3: Cross multiply
    2,151.40x = 3,225.24 × 1,283.90
  4. Step 4: Simplify right side
    2,151.40x = 4,140,885.64
  5. Step 5: Solve for x
    x = 4,140,885.64/2,151.40
  6. Step 6: Final answer
    x = 1,924.74

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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.