Home / 2,370.35-3,552.78-1,121.74

Finding the Fourth Proportional to 2,370.35, 3,552.78 and 1,121.74

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Solution

The fourth proportional to 2,370.35, 3,552.78 and 1,121.74 is: 1,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.35 : 3,552.78 = 1,121.74 : x
  2. Step 2: Convert to fraction form
    2,370.35/3,552.78 = 1,121.74/x
  3. Step 3: Cross multiply
    2,370.35x = 3,552.78 × 1,121.74
  4. Step 4: Simplify right side
    2,370.35x = 3,985,289.83
  5. Step 5: Solve for x
    x = 3,985,289.83/2,370.35
  6. Step 6: Final answer
    x = 1,681.31

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1.5x scale

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.