Home / 2,254.40-3,110.60-1,322.40

Finding the Fourth Proportional to 2,254.40, 3,110.60 and 1,322.40

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Solution

The fourth proportional to 2,254.40, 3,110.60 and 1,322.40 is: 1,824.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.40 : 3,110.60 = 1,322.40 : x
  2. Step 2: Convert to fraction form
    2,254.40/3,110.60 = 1,322.40/x
  3. Step 3: Cross multiply
    2,254.40x = 3,110.60 × 1,322.40
  4. Step 4: Simplify right side
    2,254.40x = 4,113,457.44
  5. Step 5: Solve for x
    x = 4,113,457.44/2,254.40
  6. Step 6: Final answer
    x = 1,824.64

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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.