Home / 3,831.32-5,746.57-1,977.64

Finding the Fourth Proportional to 3,831.32, 5,746.57 and 1,977.64

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Solution

The fourth proportional to 3,831.32, 5,746.57 and 1,977.64 is: 2,966.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.32 : 5,746.57 = 1,977.64 : x
  2. Step 2: Convert to fraction form
    3,831.32/5,746.57 = 1,977.64/x
  3. Step 3: Cross multiply
    3,831.32x = 5,746.57 × 1,977.64
  4. Step 4: Simplify right side
    3,831.32x = 11,364,646.69
  5. Step 5: Solve for x
    x = 11,364,646.69/3,831.32
  6. Step 6: Final answer
    x = 2,966.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.