Home / 1,255.32-1,871.01-1,226.16

Finding the Fourth Proportional to 1,255.32, 1,871.01 and 1,226.16

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Solution

The fourth proportional to 1,255.32, 1,871.01 and 1,226.16 is: 1,827.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.32 : 1,871.01 = 1,226.16 : x
  2. Step 2: Convert to fraction form
    1,255.32/1,871.01 = 1,226.16/x
  3. Step 3: Cross multiply
    1,255.32x = 1,871.01 × 1,226.16
  4. Step 4: Simplify right side
    1,255.32x = 2,294,157.62
  5. Step 5: Solve for x
    x = 2,294,157.62/1,255.32
  6. Step 6: Final answer
    x = 1,827.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.