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Finding the Fourth Proportional to 841.16, 1,262.50 and 533.57

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Solution

The fourth proportional to 841.16, 1,262.50 and 533.57 is: 800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.16 : 1,262.50 = 533.57 : x
  2. Step 2: Convert to fraction form
    841.16/1,262.50 = 533.57/x
  3. Step 3: Cross multiply
    841.16x = 1,262.50 × 533.57
  4. Step 4: Simplify right side
    841.16x = 673,624.48
  5. Step 5: Solve for x
    x = 673,624.48/841.16
  6. Step 6: Final answer
    x = 800.83

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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.