Home / 4,178.72-6,268.01-1,256.90

Finding the Fourth Proportional to 4,178.72, 6,268.01 and 1,256.90

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Solution

The fourth proportional to 4,178.72, 6,268.01 and 1,256.90 is: 1,885.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.72 : 6,268.01 = 1,256.90 : x
  2. Step 2: Convert to fraction form
    4,178.72/6,268.01 = 1,256.90/x
  3. Step 3: Cross multiply
    4,178.72x = 6,268.01 × 1,256.90
  4. Step 4: Simplify right side
    4,178.72x = 7,878,261.77
  5. Step 5: Solve for x
    x = 7,878,261.77/4,178.72
  6. Step 6: Final answer
    x = 1,885.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.