Home / 5,134.31-7,085.36-2,776.46

Finding the Fourth Proportional to 5,134.31, 7,085.36 and 2,776.46

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Solution

The fourth proportional to 5,134.31, 7,085.36 and 2,776.46 is: 3,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.31 : 7,085.36 = 2,776.46 : x
  2. Step 2: Convert to fraction form
    5,134.31/7,085.36 = 2,776.46/x
  3. Step 3: Cross multiply
    5,134.31x = 7,085.36 × 2,776.46
  4. Step 4: Simplify right side
    5,134.31x = 19,672,169.32
  5. Step 5: Solve for x
    x = 19,672,169.32/5,134.31
  6. Step 6: Final answer
    x = 3,831.51

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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.