Home / 4,118.76-6,178.14-1,157.47

Finding the Fourth Proportional to 4,118.76, 6,178.14 and 1,157.47

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Solution

The fourth proportional to 4,118.76, 6,178.14 and 1,157.47 is: 1,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.76 : 6,178.14 = 1,157.47 : x
  2. Step 2: Convert to fraction form
    4,118.76/6,178.14 = 1,157.47/x
  3. Step 3: Cross multiply
    4,118.76x = 6,178.14 × 1,157.47
  4. Step 4: Simplify right side
    4,118.76x = 7,150,996.26
  5. Step 5: Solve for x
    x = 7,150,996.26/4,118.76
  6. Step 6: Final answer
    x = 1,736.20

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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.