Home / 5,089.74-7,632.19-1,971.20

Finding the Fourth Proportional to 5,089.74, 7,632.19 and 1,971.20

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Solution

The fourth proportional to 5,089.74, 7,632.19 and 1,971.20 is: 2,955.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.74 : 7,632.19 = 1,971.20 : x
  2. Step 2: Convert to fraction form
    5,089.74/7,632.19 = 1,971.20/x
  3. Step 3: Cross multiply
    5,089.74x = 7,632.19 × 1,971.20
  4. Step 4: Simplify right side
    5,089.74x = 15,044,594.47
  5. Step 5: Solve for x
    x = 15,044,594.47/5,089.74
  6. Step 6: Final answer
    x = 2,955.87

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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.