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Finding the Fourth Proportional to 1,750.89, 2,626.78 and 776.76

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Solution

The fourth proportional to 1,750.89, 2,626.78 and 776.76 is: 1,165.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.89 : 2,626.78 = 776.76 : x
  2. Step 2: Convert to fraction form
    1,750.89/2,626.78 = 776.76/x
  3. Step 3: Cross multiply
    1,750.89x = 2,626.78 × 776.76
  4. Step 4: Simplify right side
    1,750.89x = 2,040,377.63
  5. Step 5: Solve for x
    x = 2,040,377.63/1,750.89
  6. Step 6: Final answer
    x = 1,165.34

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1.5x scale

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.