Home / 5,117.52-7,678.32-1,830.96

Finding the Fourth Proportional to 5,117.52, 7,678.32 and 1,830.96

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Solution

The fourth proportional to 5,117.52, 7,678.32 and 1,830.96 is: 2,747.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.52 : 7,678.32 = 1,830.96 : x
  2. Step 2: Convert to fraction form
    5,117.52/7,678.32 = 1,830.96/x
  3. Step 3: Cross multiply
    5,117.52x = 7,678.32 × 1,830.96
  4. Step 4: Simplify right side
    5,117.52x = 14,058,696.79
  5. Step 5: Solve for x
    x = 14,058,696.79/5,117.52
  6. Step 6: Final answer
    x = 2,747.17

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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.