Home / 4,112.40-5,675.56-2,621.68

Finding the Fourth Proportional to 4,112.40, 5,675.56 and 2,621.68

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Solution

The fourth proportional to 4,112.40, 5,675.56 and 2,621.68 is: 3,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.40 : 5,675.56 = 2,621.68 : x
  2. Step 2: Convert to fraction form
    4,112.40/5,675.56 = 2,621.68/x
  3. Step 3: Cross multiply
    4,112.40x = 5,675.56 × 2,621.68
  4. Step 4: Simplify right side
    4,112.40x = 14,879,502.14
  5. Step 5: Solve for x
    x = 14,879,502.14/4,112.40
  6. Step 6: Final answer
    x = 3,618.20

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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.