Home / 7,451.64-11,177.08-1,904.81

Finding the Fourth Proportional to 7,451.64, 11,177.08 and 1,904.81

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Solution

The fourth proportional to 7,451.64, 11,177.08 and 1,904.81 is: 2,857.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.64 : 11,177.08 = 1,904.81 : x
  2. Step 2: Convert to fraction form
    7,451.64/11,177.08 = 1,904.81/x
  3. Step 3: Cross multiply
    7,451.64x = 11,177.08 × 1,904.81
  4. Step 4: Simplify right side
    7,451.64x = 21,290,153.11
  5. Step 5: Solve for x
    x = 21,290,153.11/7,451.64
  6. Step 6: Final answer
    x = 2,857.11

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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.