Home / 2,254.41-3,111.08-1,259.64

Finding the Fourth Proportional to 2,254.41, 3,111.08 and 1,259.64

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Solution

The fourth proportional to 2,254.41, 3,111.08 and 1,259.64 is: 1,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.41 : 3,111.08 = 1,259.64 : x
  2. Step 2: Convert to fraction form
    2,254.41/3,111.08 = 1,259.64/x
  3. Step 3: Cross multiply
    2,254.41x = 3,111.08 × 1,259.64
  4. Step 4: Simplify right side
    2,254.41x = 3,918,834.51
  5. Step 5: Solve for x
    x = 3,918,834.51/2,254.41
  6. Step 6: Final answer
    x = 1,738.30

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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.