Home / 2,776.16-3,831.18-1,892.36

Finding the Fourth Proportional to 2,776.16, 3,831.18 and 1,892.36

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Solution

The fourth proportional to 2,776.16, 3,831.18 and 1,892.36 is: 2,611.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.16 : 3,831.18 = 1,892.36 : x
  2. Step 2: Convert to fraction form
    2,776.16/3,831.18 = 1,892.36/x
  3. Step 3: Cross multiply
    2,776.16x = 3,831.18 × 1,892.36
  4. Step 4: Simplify right side
    2,776.16x = 7,249,971.78
  5. Step 5: Solve for x
    x = 7,249,971.78/2,776.16
  6. Step 6: Final answer
    x = 2,611.51

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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.