Home / 5,140.26-7,093.54-2,782.40

Finding the Fourth Proportional to 5,140.26, 7,093.54 and 2,782.40

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Solution

The fourth proportional to 5,140.26, 7,093.54 and 2,782.40 is: 3,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.26 : 7,093.54 = 2,782.40 : x
  2. Step 2: Convert to fraction form
    5,140.26/7,093.54 = 2,782.40/x
  3. Step 3: Cross multiply
    5,140.26x = 7,093.54 × 2,782.40
  4. Step 4: Simplify right side
    5,140.26x = 19,737,065.70
  5. Step 5: Solve for x
    x = 19,737,065.70/5,140.26
  6. Step 6: Final answer
    x = 3,839.70

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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.