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Finding the Fourth Proportional to 2,904.02, 4,356 and 712.76

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Solution

The fourth proportional to 2,904.02, 4,356 and 712.76 is: 1,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.02 : 4,356 = 712.76 : x
  2. Step 2: Convert to fraction form
    2,904.02/4,356 = 712.76/x
  3. Step 3: Cross multiply
    2,904.02x = 4,356 × 712.76
  4. Step 4: Simplify right side
    2,904.02x = 3,104,782.56
  5. Step 5: Solve for x
    x = 3,104,782.56/2,904.02
  6. Step 6: Final answer
    x = 1,069.13

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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.