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Finding the Fourth Proportional to 1,763.39, 2,645.09 and 530.93

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Solution

The fourth proportional to 1,763.39, 2,645.09 and 530.93 is: 796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.39 : 2,645.09 = 530.93 : x
  2. Step 2: Convert to fraction form
    1,763.39/2,645.09 = 530.93/x
  3. Step 3: Cross multiply
    1,763.39x = 2,645.09 × 530.93
  4. Step 4: Simplify right side
    1,763.39x = 1,404,357.63
  5. Step 5: Solve for x
    x = 1,404,357.63/1,763.39
  6. Step 6: Final answer
    x = 796.40

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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.