Home / 1,904.64-2,857.11-606.11

Finding the Fourth Proportional to 1,904.64, 2,857.11 and 606.11

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Solution

The fourth proportional to 1,904.64, 2,857.11 and 606.11 is: 909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.64 : 2,857.11 = 606.11 : x
  2. Step 2: Convert to fraction form
    1,904.64/2,857.11 = 606.11/x
  3. Step 3: Cross multiply
    1,904.64x = 2,857.11 × 606.11
  4. Step 4: Simplify right side
    1,904.64x = 1,731,705.63
  5. Step 5: Solve for x
    x = 1,731,705.63/1,904.64
  6. Step 6: Final answer
    x = 909.21

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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.