Home / 3,137.02-4,334.80-2,985.20

Finding the Fourth Proportional to 3,137.02, 4,334.80 and 2,985.20

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Solution

The fourth proportional to 3,137.02, 4,334.80 and 2,985.20 is: 4,125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.02 : 4,334.80 = 2,985.20 : x
  2. Step 2: Convert to fraction form
    3,137.02/4,334.80 = 2,985.20/x
  3. Step 3: Cross multiply
    3,137.02x = 4,334.80 × 2,985.20
  4. Step 4: Simplify right side
    3,137.02x = 12,940,244.96
  5. Step 5: Solve for x
    x = 12,940,244.96/3,137.02
  6. Step 6: Final answer
    x = 4,125.01

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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.