Home / 1,831.66-2,528.85-1,203.30

Finding the Fourth Proportional to 1,831.66, 2,528.85 and 1,203.30

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Solution

The fourth proportional to 1,831.66, 2,528.85 and 1,203.30 is: 1,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.66 : 2,528.85 = 1,203.30 : x
  2. Step 2: Convert to fraction form
    1,831.66/2,528.85 = 1,203.30/x
  3. Step 3: Cross multiply
    1,831.66x = 2,528.85 × 1,203.30
  4. Step 4: Simplify right side
    1,831.66x = 3,042,965.21
  5. Step 5: Solve for x
    x = 3,042,965.21/1,831.66
  6. Step 6: Final answer
    x = 1,661.32

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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.