Home / 2,389.83-3,602.48-2,182.22

Finding the Fourth Proportional to 2,389.83, 3,602.48 and 2,182.22

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Solution

The fourth proportional to 2,389.83, 3,602.48 and 2,182.22 is: 3,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.83 : 3,602.48 = 2,182.22 : x
  2. Step 2: Convert to fraction form
    2,389.83/3,602.48 = 2,182.22/x
  3. Step 3: Cross multiply
    2,389.83x = 3,602.48 × 2,182.22
  4. Step 4: Simplify right side
    2,389.83x = 7,861,378.36
  5. Step 5: Solve for x
    x = 7,861,378.36/2,389.83
  6. Step 6: Final answer
    x = 3,289.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.