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Finding the Fourth Proportional to 1,858.85, 2,767.04 and 1,831.16

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Solution

The fourth proportional to 1,858.85, 2,767.04 and 1,831.16 is: 2,725.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.85 : 2,767.04 = 1,831.16 : x
  2. Step 2: Convert to fraction form
    1,858.85/2,767.04 = 1,831.16/x
  3. Step 3: Cross multiply
    1,858.85x = 2,767.04 × 1,831.16
  4. Step 4: Simplify right side
    1,858.85x = 5,066,883.81
  5. Step 5: Solve for x
    x = 5,066,883.81/1,858.85
  6. Step 6: Final answer
    x = 2,725.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.