Home / 5,107.49-7,048.62-3,117.47

Finding the Fourth Proportional to 5,107.49, 7,048.62 and 3,117.47

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Solution

The fourth proportional to 5,107.49, 7,048.62 and 3,117.47 is: 4,302.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.49 : 7,048.62 = 3,117.47 : x
  2. Step 2: Convert to fraction form
    5,107.49/7,048.62 = 3,117.47/x
  3. Step 3: Cross multiply
    5,107.49x = 7,048.62 × 3,117.47
  4. Step 4: Simplify right side
    5,107.49x = 21,973,845.80
  5. Step 5: Solve for x
    x = 21,973,845.80/5,107.49
  6. Step 6: Final answer
    x = 4,302.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.