Home / 5,115.61-7,669.32-4,705.57

Finding the Fourth Proportional to 5,115.61, 7,669.32 and 4,705.57

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Solution

The fourth proportional to 5,115.61, 7,669.32 and 4,705.57 is: 7,054.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.61 : 7,669.32 = 4,705.57 : x
  2. Step 2: Convert to fraction form
    5,115.61/7,669.32 = 4,705.57/x
  3. Step 3: Cross multiply
    5,115.61x = 7,669.32 × 4,705.57
  4. Step 4: Simplify right side
    5,115.61x = 36,088,522.11
  5. Step 5: Solve for x
    x = 36,088,522.11/5,115.61
  6. Step 6: Final answer
    x = 7,054.59

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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.