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Finding the Fourth Proportional to 5,265.05, 7,265.09 and 2,907.05

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Solution

The fourth proportional to 5,265.05, 7,265.09 and 2,907.05 is: 4,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265.05 : 7,265.09 = 2,907.05 : x
  2. Step 2: Convert to fraction form
    5,265.05/7,265.09 = 2,907.05/x
  3. Step 3: Cross multiply
    5,265.05x = 7,265.09 × 2,907.05
  4. Step 4: Simplify right side
    5,265.05x = 21,119,950.83
  5. Step 5: Solve for x
    x = 21,119,950.83/5,265.05
  6. Step 6: Final answer
    x = 4,011.35

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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.