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Finding the Fourth Proportional to 1,433.98, 2,151.76 and 556.52

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Solution

The fourth proportional to 1,433.98, 2,151.76 and 556.52 is: 835.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.98 : 2,151.76 = 556.52 : x
  2. Step 2: Convert to fraction form
    1,433.98/2,151.76 = 556.52/x
  3. Step 3: Cross multiply
    1,433.98x = 2,151.76 × 556.52
  4. Step 4: Simplify right side
    1,433.98x = 1,197,491.35
  5. Step 5: Solve for x
    x = 1,197,491.35/1,433.98
  6. Step 6: Final answer
    x = 835.08

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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.