Home / 1,377.17-2,065.76-403.27

Finding the Fourth Proportional to 1,377.17, 2,065.76 and 403.27

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Solution

The fourth proportional to 1,377.17, 2,065.76 and 403.27 is: 604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.17 : 2,065.76 = 403.27 : x
  2. Step 2: Convert to fraction form
    1,377.17/2,065.76 = 403.27/x
  3. Step 3: Cross multiply
    1,377.17x = 2,065.76 × 403.27
  4. Step 4: Simplify right side
    1,377.17x = 833,064.23
  5. Step 5: Solve for x
    x = 833,064.23/1,377.17
  6. Step 6: Final answer
    x = 604.91

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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.