Home / 7,135.42-10,705.06-2,977.36

Finding the Fourth Proportional to 7,135.42, 10,705.06 and 2,977.36

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Solution

The fourth proportional to 7,135.42, 10,705.06 and 2,977.36 is: 4,466.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.42 : 10,705.06 = 2,977.36 : x
  2. Step 2: Convert to fraction form
    7,135.42/10,705.06 = 2,977.36/x
  3. Step 3: Cross multiply
    7,135.42x = 10,705.06 × 2,977.36
  4. Step 4: Simplify right side
    7,135.42x = 31,872,817.44
  5. Step 5: Solve for x
    x = 31,872,817.44/7,135.42
  6. Step 6: Final answer
    x = 4,466.85

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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.