Home / 5,117.99-7,639.62-4,392.23

Finding the Fourth Proportional to 5,117.99, 7,639.62 and 4,392.23

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Solution

The fourth proportional to 5,117.99, 7,639.62 and 4,392.23 is: 6,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.99 : 7,639.62 = 4,392.23 : x
  2. Step 2: Convert to fraction form
    5,117.99/7,639.62 = 4,392.23/x
  3. Step 3: Cross multiply
    5,117.99x = 7,639.62 × 4,392.23
  4. Step 4: Simplify right side
    5,117.99x = 33,554,968.15
  5. Step 5: Solve for x
    x = 33,554,968.15/5,117.99
  6. Step 6: Final answer
    x = 6,556.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.