Home / 3,559.52-4,911.62-1,987.58

Finding the Fourth Proportional to 3,559.52, 4,911.62 and 1,987.58

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Solution

The fourth proportional to 3,559.52, 4,911.62 and 1,987.58 is: 2,742.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.52 : 4,911.62 = 1,987.58 : x
  2. Step 2: Convert to fraction form
    3,559.52/4,911.62 = 1,987.58/x
  3. Step 3: Cross multiply
    3,559.52x = 4,911.62 × 1,987.58
  4. Step 4: Simplify right side
    3,559.52x = 9,762,237.68
  5. Step 5: Solve for x
    x = 9,762,237.68/3,559.52
  6. Step 6: Final answer
    x = 2,742.57

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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.