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Finding the Fourth Proportional to 1,750.10, 2,623.66 and 775.66

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Solution

The fourth proportional to 1,750.10, 2,623.66 and 775.66 is: 1,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.10 : 2,623.66 = 775.66 : x
  2. Step 2: Convert to fraction form
    1,750.10/2,623.66 = 775.66/x
  3. Step 3: Cross multiply
    1,750.10x = 2,623.66 × 775.66
  4. Step 4: Simplify right side
    1,750.10x = 2,035,068.12
  5. Step 5: Solve for x
    x = 2,035,068.12/1,750.10
  6. Step 6: Final answer
    x = 1,162.83

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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.