Home / 5,641.87-8,460.45-2,131.26

Finding the Fourth Proportional to 5,641.87, 8,460.45 and 2,131.26

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Solution

The fourth proportional to 5,641.87, 8,460.45 and 2,131.26 is: 3,196.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.87 : 8,460.45 = 2,131.26 : x
  2. Step 2: Convert to fraction form
    5,641.87/8,460.45 = 2,131.26/x
  3. Step 3: Cross multiply
    5,641.87x = 8,460.45 × 2,131.26
  4. Step 4: Simplify right side
    5,641.87x = 18,031,418.67
  5. Step 5: Solve for x
    x = 18,031,418.67/5,641.87
  6. Step 6: Final answer
    x = 3,196.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.