Home / 2,971.50-4,454.30-1,408.74

Finding the Fourth Proportional to 2,971.50, 4,454.30 and 1,408.74

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Solution

The fourth proportional to 2,971.50, 4,454.30 and 1,408.74 is: 2,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.50 : 4,454.30 = 1,408.74 : x
  2. Step 2: Convert to fraction form
    2,971.50/4,454.30 = 1,408.74/x
  3. Step 3: Cross multiply
    2,971.50x = 4,454.30 × 1,408.74
  4. Step 4: Simplify right side
    2,971.50x = 6,274,950.58
  5. Step 5: Solve for x
    x = 6,274,950.58/2,971.50
  6. Step 6: Final answer
    x = 2,111.71

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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.