Home / 3,875.21-5,350.35-2,977.36

Finding the Fourth Proportional to 3,875.21, 5,350.35 and 2,977.36

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Solution

The fourth proportional to 3,875.21, 5,350.35 and 2,977.36 is: 4,110.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.21 : 5,350.35 = 2,977.36 : x
  2. Step 2: Convert to fraction form
    3,875.21/5,350.35 = 2,977.36/x
  3. Step 3: Cross multiply
    3,875.21x = 5,350.35 × 2,977.36
  4. Step 4: Simplify right side
    3,875.21x = 15,929,915.87
  5. Step 5: Solve for x
    x = 15,929,915.87/3,875.21
  6. Step 6: Final answer
    x = 4,110.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.