Home / 3,919.50-5,880.47-1,146.24

Finding the Fourth Proportional to 3,919.50, 5,880.47 and 1,146.24

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Solution

The fourth proportional to 3,919.50, 5,880.47 and 1,146.24 is: 1,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.50 : 5,880.47 = 1,146.24 : x
  2. Step 2: Convert to fraction form
    3,919.50/5,880.47 = 1,146.24/x
  3. Step 3: Cross multiply
    3,919.50x = 5,880.47 × 1,146.24
  4. Step 4: Simplify right side
    3,919.50x = 6,740,424.20
  5. Step 5: Solve for x
    x = 6,740,424.20/3,919.50
  6. Step 6: Final answer
    x = 1,719.72

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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.