Home / 5,140.17-7,093.44-2,782.31

Finding the Fourth Proportional to 5,140.17, 7,093.44 and 2,782.31

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Solution

The fourth proportional to 5,140.17, 7,093.44 and 2,782.31 is: 3,839.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.17 : 7,093.44 = 2,782.31 : x
  2. Step 2: Convert to fraction form
    5,140.17/7,093.44 = 2,782.31/x
  3. Step 3: Cross multiply
    5,140.17x = 7,093.44 × 2,782.31
  4. Step 4: Simplify right side
    5,140.17x = 19,736,113.58
  5. Step 5: Solve for x
    x = 19,736,113.58/5,140.17
  6. Step 6: Final answer
    x = 3,839.58

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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.