Home / 2,219.53-3,061.60-1,322.68

Finding the Fourth Proportional to 2,219.53, 3,061.60 and 1,322.68

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Solution

The fourth proportional to 2,219.53, 3,061.60 and 1,322.68 is: 1,824.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.53 : 3,061.60 = 1,322.68 : x
  2. Step 2: Convert to fraction form
    2,219.53/3,061.60 = 1,322.68/x
  3. Step 3: Cross multiply
    2,219.53x = 3,061.60 × 1,322.68
  4. Step 4: Simplify right side
    2,219.53x = 4,049,506.13
  5. Step 5: Solve for x
    x = 4,049,506.13/2,219.53
  6. Step 6: Final answer
    x = 1,824.49

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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.