Home / 2,656.12-3,682.15-2,515.60

Finding the Fourth Proportional to 2,656.12, 3,682.15 and 2,515.60

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Solution

The fourth proportional to 2,656.12, 3,682.15 and 2,515.60 is: 3,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.12 : 3,682.15 = 2,515.60 : x
  2. Step 2: Convert to fraction form
    2,656.12/3,682.15 = 2,515.60/x
  3. Step 3: Cross multiply
    2,656.12x = 3,682.15 × 2,515.60
  4. Step 4: Simplify right side
    2,656.12x = 9,262,816.54
  5. Step 5: Solve for x
    x = 9,262,816.54/2,656.12
  6. Step 6: Final answer
    x = 3,487.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.