Home / 5,134.40-7,085.46-2,776.55

Finding the Fourth Proportional to 5,134.40, 7,085.46 and 2,776.55

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Solution

The fourth proportional to 5,134.40, 7,085.46 and 2,776.55 is: 3,831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.40 : 7,085.46 = 2,776.55 : x
  2. Step 2: Convert to fraction form
    5,134.40/7,085.46 = 2,776.55/x
  3. Step 3: Cross multiply
    5,134.40x = 7,085.46 × 2,776.55
  4. Step 4: Simplify right side
    5,134.40x = 19,673,098.54
  5. Step 5: Solve for x
    x = 19,673,098.54/5,134.40
  6. Step 6: Final answer
    x = 3,831.63

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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.