Home / 5,107.47-7,048.96-3,117.60

Finding the Fourth Proportional to 5,107.47, 7,048.96 and 3,117.60

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Solution

The fourth proportional to 5,107.47, 7,048.96 and 3,117.60 is: 4,302.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.47 : 7,048.96 = 3,117.60 : x
  2. Step 2: Convert to fraction form
    5,107.47/7,048.96 = 3,117.60/x
  3. Step 3: Cross multiply
    5,107.47x = 7,048.96 × 3,117.60
  4. Step 4: Simplify right side
    5,107.47x = 21,975,837.70
  5. Step 5: Solve for x
    x = 21,975,837.70/5,107.47
  6. Step 6: Final answer
    x = 4,302.69

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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.