Home / 2,929.88-4,043.22-1,603.56

Finding the Fourth Proportional to 2,929.88, 4,043.22 and 1,603.56

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Solution

The fourth proportional to 2,929.88, 4,043.22 and 1,603.56 is: 2,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.88 : 4,043.22 = 1,603.56 : x
  2. Step 2: Convert to fraction form
    2,929.88/4,043.22 = 1,603.56/x
  3. Step 3: Cross multiply
    2,929.88x = 4,043.22 × 1,603.56
  4. Step 4: Simplify right side
    2,929.88x = 6,483,545.86
  5. Step 5: Solve for x
    x = 6,483,545.86/2,929.88
  6. Step 6: Final answer
    x = 2,212.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.