Home / 2,068.85-3,103.28-1,455.30

Finding the Fourth Proportional to 2,068.85, 3,103.28 and 1,455.30

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Solution

The fourth proportional to 2,068.85, 3,103.28 and 1,455.30 is: 2,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.85 : 3,103.28 = 1,455.30 : x
  2. Step 2: Convert to fraction form
    2,068.85/3,103.28 = 1,455.30/x
  3. Step 3: Cross multiply
    2,068.85x = 3,103.28 × 1,455.30
  4. Step 4: Simplify right side
    2,068.85x = 4,516,196.11
  5. Step 5: Solve for x
    x = 4,516,196.11/2,068.85
  6. Step 6: Final answer
    x = 2,182.95

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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.