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Finding the Fourth Proportional to 1,484.39, 2,226.74 and 510.57

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Solution

The fourth proportional to 1,484.39, 2,226.74 and 510.57 is: 765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.39 : 2,226.74 = 510.57 : x
  2. Step 2: Convert to fraction form
    1,484.39/2,226.74 = 510.57/x
  3. Step 3: Cross multiply
    1,484.39x = 2,226.74 × 510.57
  4. Step 4: Simplify right side
    1,484.39x = 1,136,904.09
  5. Step 5: Solve for x
    x = 1,136,904.09/1,484.39
  6. Step 6: Final answer
    x = 765.91

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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.