Home / 3,559.14-4,911.57-1,987.50

Finding the Fourth Proportional to 3,559.14, 4,911.57 and 1,987.50

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Solution

The fourth proportional to 3,559.14, 4,911.57 and 1,987.50 is: 2,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.14 : 4,911.57 = 1,987.50 : x
  2. Step 2: Convert to fraction form
    3,559.14/4,911.57 = 1,987.50/x
  3. Step 3: Cross multiply
    3,559.14x = 4,911.57 × 1,987.50
  4. Step 4: Simplify right side
    3,559.14x = 9,761,745.38
  5. Step 5: Solve for x
    x = 9,761,745.38/3,559.14
  6. Step 6: Final answer
    x = 2,742.73

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Half scale
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Double scale
Find fourth proportional to 3,560.14, 4,912.95 and 1,988.50
Similar ratio
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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.