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Finding the Fourth Proportional to 1,341.57, 2,011.43 and 793.47

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Solution

The fourth proportional to 1,341.57, 2,011.43 and 793.47 is: 1,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.57 : 2,011.43 = 793.47 : x
  2. Step 2: Convert to fraction form
    1,341.57/2,011.43 = 793.47/x
  3. Step 3: Cross multiply
    1,341.57x = 2,011.43 × 793.47
  4. Step 4: Simplify right side
    1,341.57x = 1,596,009.36
  5. Step 5: Solve for x
    x = 1,596,009.36/1,341.57
  6. Step 6: Final answer
    x = 1,189.66

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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.