Home / 1,730.61-2,591.72-1,211.13

Finding the Fourth Proportional to 1,730.61, 2,591.72 and 1,211.13

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Solution

The fourth proportional to 1,730.61, 2,591.72 and 1,211.13 is: 1,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.61 : 2,591.72 = 1,211.13 : x
  2. Step 2: Convert to fraction form
    1,730.61/2,591.72 = 1,211.13/x
  3. Step 3: Cross multiply
    1,730.61x = 2,591.72 × 1,211.13
  4. Step 4: Simplify right side
    1,730.61x = 3,138,899.91
  5. Step 5: Solve for x
    x = 3,138,899.91/1,730.61
  6. Step 6: Final answer
    x = 1,813.76

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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.