Home / 7,137.02-10,705.34-3,187.28

Finding the Fourth Proportional to 7,137.02, 10,705.34 and 3,187.28

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Solution

The fourth proportional to 7,137.02, 10,705.34 and 3,187.28 is: 4,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.02 : 10,705.34 = 3,187.28 : x
  2. Step 2: Convert to fraction form
    7,137.02/10,705.34 = 3,187.28/x
  3. Step 3: Cross multiply
    7,137.02x = 10,705.34 × 3,187.28
  4. Step 4: Simplify right side
    7,137.02x = 34,120,916.08
  5. Step 5: Solve for x
    x = 34,120,916.08/7,137.02
  6. Step 6: Final answer
    x = 4,780.84

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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.