Home / 3,707.12-5,558.52-1,398.80

Finding the Fourth Proportional to 3,707.12, 5,558.52 and 1,398.80

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Solution

The fourth proportional to 3,707.12, 5,558.52 and 1,398.80 is: 2,097.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.12 : 5,558.52 = 1,398.80 : x
  2. Step 2: Convert to fraction form
    3,707.12/5,558.52 = 1,398.80/x
  3. Step 3: Cross multiply
    3,707.12x = 5,558.52 × 1,398.80
  4. Step 4: Simplify right side
    3,707.12x = 7,775,257.78
  5. Step 5: Solve for x
    x = 7,775,257.78/3,707.12
  6. Step 6: Final answer
    x = 2,097.38

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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.