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Finding the Fourth Proportional to 1,756.85, 2,635.27 and 716.84

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Solution

The fourth proportional to 1,756.85, 2,635.27 and 716.84 is: 1,075.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.85 : 2,635.27 = 716.84 : x
  2. Step 2: Convert to fraction form
    1,756.85/2,635.27 = 716.84/x
  3. Step 3: Cross multiply
    1,756.85x = 2,635.27 × 716.84
  4. Step 4: Simplify right side
    1,756.85x = 1,889,051.98
  5. Step 5: Solve for x
    x = 1,889,051.98/1,756.85
  6. Step 6: Final answer
    x = 1,075.25

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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.