Home / 2,920.60-4,029.87-1,741.78

Finding the Fourth Proportional to 2,920.60, 4,029.87 and 1,741.78

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Solution

The fourth proportional to 2,920.60, 4,029.87 and 1,741.78 is: 2,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.60 : 4,029.87 = 1,741.78 : x
  2. Step 2: Convert to fraction form
    2,920.60/4,029.87 = 1,741.78/x
  3. Step 3: Cross multiply
    2,920.60x = 4,029.87 × 1,741.78
  4. Step 4: Simplify right side
    2,920.60x = 7,019,136.89
  5. Step 5: Solve for x
    x = 7,019,136.89/2,920.60
  6. Step 6: Final answer
    x = 2,403.32

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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.