Home / 5,625.21-7,762.68-3,387.09

Finding the Fourth Proportional to 5,625.21, 7,762.68 and 3,387.09

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Solution

The fourth proportional to 5,625.21, 7,762.68 and 3,387.09 is: 4,674.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.21 : 7,762.68 = 3,387.09 : x
  2. Step 2: Convert to fraction form
    5,625.21/7,762.68 = 3,387.09/x
  3. Step 3: Cross multiply
    5,625.21x = 7,762.68 × 3,387.09
  4. Step 4: Simplify right side
    5,625.21x = 26,292,895.80
  5. Step 5: Solve for x
    x = 26,292,895.80/5,625.21
  6. Step 6: Final answer
    x = 4,674.12

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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.