Home / 3,378.48-5,068.44-1,187.34

Finding the Fourth Proportional to 3,378.48, 5,068.44 and 1,187.34

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Solution

The fourth proportional to 3,378.48, 5,068.44 and 1,187.34 is: 1,781.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.48 : 5,068.44 = 1,187.34 : x
  2. Step 2: Convert to fraction form
    3,378.48/5,068.44 = 1,187.34/x
  3. Step 3: Cross multiply
    3,378.48x = 5,068.44 × 1,187.34
  4. Step 4: Simplify right side
    3,378.48x = 6,017,961.55
  5. Step 5: Solve for x
    x = 6,017,961.55/3,378.48
  6. Step 6: Final answer
    x = 1,781.26

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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.