Home / 2,316.81-3,197.21-1,268.88

Finding the Fourth Proportional to 2,316.81, 3,197.21 and 1,268.88

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Solution

The fourth proportional to 2,316.81, 3,197.21 and 1,268.88 is: 1,751.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.81 : 3,197.21 = 1,268.88 : x
  2. Step 2: Convert to fraction form
    2,316.81/3,197.21 = 1,268.88/x
  3. Step 3: Cross multiply
    2,316.81x = 3,197.21 × 1,268.88
  4. Step 4: Simplify right side
    2,316.81x = 4,056,875.82
  5. Step 5: Solve for x
    x = 4,056,875.82/2,316.81
  6. Step 6: Final answer
    x = 1,751.06

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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.