Home / 5,140.86-7,087.11-3,648.23

Finding the Fourth Proportional to 5,140.86, 7,087.11 and 3,648.23

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Solution

The fourth proportional to 5,140.86, 7,087.11 and 3,648.23 is: 5,029.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.86 : 7,087.11 = 3,648.23 : x
  2. Step 2: Convert to fraction form
    5,140.86/7,087.11 = 3,648.23/x
  3. Step 3: Cross multiply
    5,140.86x = 7,087.11 × 3,648.23
  4. Step 4: Simplify right side
    5,140.86x = 25,855,389.07
  5. Step 5: Solve for x
    x = 25,855,389.07/5,140.86
  6. Step 6: Final answer
    x = 5,029.39

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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.