Home / 1,451.40-2,173.76-1,137.07

Finding the Fourth Proportional to 1,451.40, 2,173.76 and 1,137.07

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Solution

The fourth proportional to 1,451.40, 2,173.76 and 1,137.07 is: 1,702.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.40 : 2,173.76 = 1,137.07 : x
  2. Step 2: Convert to fraction form
    1,451.40/2,173.76 = 1,137.07/x
  3. Step 3: Cross multiply
    1,451.40x = 2,173.76 × 1,137.07
  4. Step 4: Simplify right side
    1,451.40x = 2,471,717.28
  5. Step 5: Solve for x
    x = 2,471,717.28/1,451.40
  6. Step 6: Final answer
    x = 1,702.99

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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.