Home / 3,670.80-5,066.34-2,785.10

Finding the Fourth Proportional to 3,670.80, 5,066.34 and 2,785.10

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Solution

The fourth proportional to 3,670.80, 5,066.34 and 2,785.10 is: 3,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.80 : 5,066.34 = 2,785.10 : x
  2. Step 2: Convert to fraction form
    3,670.80/5,066.34 = 2,785.10/x
  3. Step 3: Cross multiply
    3,670.80x = 5,066.34 × 2,785.10
  4. Step 4: Simplify right side
    3,670.80x = 14,110,263.53
  5. Step 5: Solve for x
    x = 14,110,263.53/3,670.80
  6. Step 6: Final answer
    x = 3,843.92

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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.