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Finding the Fourth Proportional to 5,262.78, 7,262.63 and 2,904.91

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Solution

The fourth proportional to 5,262.78, 7,262.63 and 2,904.91 is: 4,008.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.78 : 7,262.63 = 2,904.91 : x
  2. Step 2: Convert to fraction form
    5,262.78/7,262.63 = 2,904.91/x
  3. Step 3: Cross multiply
    5,262.78x = 7,262.63 × 2,904.91
  4. Step 4: Simplify right side
    5,262.78x = 21,097,271.99
  5. Step 5: Solve for x
    x = 21,097,271.99/5,262.78
  6. Step 6: Final answer
    x = 4,008.77

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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.