Home / 5,134.57-7,085.70-2,776.71

Finding the Fourth Proportional to 5,134.57, 7,085.70 and 2,776.71

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Solution

The fourth proportional to 5,134.57, 7,085.70 and 2,776.71 is: 3,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.57 : 7,085.70 = 2,776.71 : x
  2. Step 2: Convert to fraction form
    5,134.57/7,085.70 = 2,776.71/x
  3. Step 3: Cross multiply
    5,134.57x = 7,085.70 × 2,776.71
  4. Step 4: Simplify right side
    5,134.57x = 19,674,898.62
  5. Step 5: Solve for x
    x = 19,674,898.62/5,134.57
  6. Step 6: Final answer
    x = 3,831.85

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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.