Home / 4,238.40-6,356.87-1,118.43

Finding the Fourth Proportional to 4,238.40, 6,356.87 and 1,118.43

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Solution

The fourth proportional to 4,238.40, 6,356.87 and 1,118.43 is: 1,677.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,238.40 : 6,356.87 = 1,118.43 : x
  2. Step 2: Convert to fraction form
    4,238.40/6,356.87 = 1,118.43/x
  3. Step 3: Cross multiply
    4,238.40x = 6,356.87 × 1,118.43
  4. Step 4: Simplify right side
    4,238.40x = 7,109,736.55
  5. Step 5: Solve for x
    x = 7,109,736.55/4,238.40
  6. Step 6: Final answer
    x = 1,677.46

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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.