Home / 3,740.90-5,611.29-1,277.44

Finding the Fourth Proportional to 3,740.90, 5,611.29 and 1,277.44

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Solution

The fourth proportional to 3,740.90, 5,611.29 and 1,277.44 is: 1,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.90 : 5,611.29 = 1,277.44 : x
  2. Step 2: Convert to fraction form
    3,740.90/5,611.29 = 1,277.44/x
  3. Step 3: Cross multiply
    3,740.90x = 5,611.29 × 1,277.44
  4. Step 4: Simplify right side
    3,740.90x = 7,168,067.48
  5. Step 5: Solve for x
    x = 7,168,067.48/3,740.90
  6. Step 6: Final answer
    x = 1,916.14

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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.