Home / 3,931.44-5,899.10-1,851.63

Finding the Fourth Proportional to 3,931.44, 5,899.10 and 1,851.63

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Solution

The fourth proportional to 3,931.44, 5,899.10 and 1,851.63 is: 2,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.44 : 5,899.10 = 1,851.63 : x
  2. Step 2: Convert to fraction form
    3,931.44/5,899.10 = 1,851.63/x
  3. Step 3: Cross multiply
    3,931.44x = 5,899.10 × 1,851.63
  4. Step 4: Simplify right side
    3,931.44x = 10,922,941.27
  5. Step 5: Solve for x
    x = 10,922,941.27/3,931.44
  6. Step 6: Final answer
    x = 2,778.36

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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.