Home / 9,281.21-13,920.32-2,705.85

Finding the Fourth Proportional to 9,281.21, 13,920.32 and 2,705.85

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Solution

The fourth proportional to 9,281.21, 13,920.32 and 2,705.85 is: 4,058.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,281.21 : 13,920.32 = 2,705.85 : x
  2. Step 2: Convert to fraction form
    9,281.21/13,920.32 = 2,705.85/x
  3. Step 3: Cross multiply
    9,281.21x = 13,920.32 × 2,705.85
  4. Step 4: Simplify right side
    9,281.21x = 37,666,284.34
  5. Step 5: Solve for x
    x = 37,666,284.34/9,281.21
  6. Step 6: Final answer
    x = 4,058.34

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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.