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Finding the Fourth Proportional to 1,762.90, 2,433.99 and 1,575.79

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Solution

The fourth proportional to 1,762.90, 2,433.99 and 1,575.79 is: 2,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762.90 : 2,433.99 = 1,575.79 : x
  2. Step 2: Convert to fraction form
    1,762.90/2,433.99 = 1,575.79/x
  3. Step 3: Cross multiply
    1,762.90x = 2,433.99 × 1,575.79
  4. Step 4: Simplify right side
    1,762.90x = 3,835,457.10
  5. Step 5: Solve for x
    x = 3,835,457.10/1,762.90
  6. Step 6: Final answer
    x = 2,175.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.