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Finding the Fourth Proportional to 1,750.50, 2,416.50 and 1,285.56

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Solution

The fourth proportional to 1,750.50, 2,416.50 and 1,285.56 is: 1,774.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.50 : 2,416.50 = 1,285.56 : x
  2. Step 2: Convert to fraction form
    1,750.50/2,416.50 = 1,285.56/x
  3. Step 3: Cross multiply
    1,750.50x = 2,416.50 × 1,285.56
  4. Step 4: Simplify right side
    1,750.50x = 3,106,555.74
  5. Step 5: Solve for x
    x = 3,106,555.74/1,750.50
  6. Step 6: Final answer
    x = 1,774.67

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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.