Home / 2,776.38-3,831.51-1,534.62

Finding the Fourth Proportional to 2,776.38, 3,831.51 and 1,534.62

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Solution

The fourth proportional to 2,776.38, 3,831.51 and 1,534.62 is: 2,117.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.38 : 3,831.51 = 1,534.62 : x
  2. Step 2: Convert to fraction form
    2,776.38/3,831.51 = 1,534.62/x
  3. Step 3: Cross multiply
    2,776.38x = 3,831.51 × 1,534.62
  4. Step 4: Simplify right side
    2,776.38x = 5,879,911.88
  5. Step 5: Solve for x
    x = 5,879,911.88/2,776.38
  6. Step 6: Final answer
    x = 2,117.83

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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.