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Finding the Fourth Proportional to 3,572, 5,358 and 1,263.52

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Solution

The fourth proportional to 3,572, 5,358 and 1,263.52 is: 1,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572 : 5,358 = 1,263.52 : x
  2. Step 2: Convert to fraction form
    3,572/5,358 = 1,263.52/x
  3. Step 3: Cross multiply
    3,572x = 5,358 × 1,263.52
  4. Step 4: Simplify right side
    3,572x = 6,769,940.16
  5. Step 5: Solve for x
    x = 6,769,940.16/3,572
  6. Step 6: Final answer
    x = 1,895.28

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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.