Home / 5,087.13-7,021.45-2,992.47

Finding the Fourth Proportional to 5,087.13, 7,021.45 and 2,992.47

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Solution

The fourth proportional to 5,087.13, 7,021.45 and 2,992.47 is: 4,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.13 : 7,021.45 = 2,992.47 : x
  2. Step 2: Convert to fraction form
    5,087.13/7,021.45 = 2,992.47/x
  3. Step 3: Cross multiply
    5,087.13x = 7,021.45 × 2,992.47
  4. Step 4: Simplify right side
    5,087.13x = 21,011,478.48
  5. Step 5: Solve for x
    x = 21,011,478.48/5,087.13
  6. Step 6: Final answer
    x = 4,130.32

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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.