Home / 5,140.32-7,093.60-2,782.47

Finding the Fourth Proportional to 5,140.32, 7,093.60 and 2,782.47

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Solution

The fourth proportional to 5,140.32, 7,093.60 and 2,782.47 is: 3,839.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.32 : 7,093.60 = 2,782.47 : x
  2. Step 2: Convert to fraction form
    5,140.32/7,093.60 = 2,782.47/x
  3. Step 3: Cross multiply
    5,140.32x = 7,093.60 × 2,782.47
  4. Step 4: Simplify right side
    5,140.32x = 19,737,729.19
  5. Step 5: Solve for x
    x = 19,737,729.19/5,140.32
  6. Step 6: Final answer
    x = 3,839.79

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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.