Home / 1,756.35-2,634.53-1,680.45

Finding the Fourth Proportional to 1,756.35, 2,634.53 and 1,680.45

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Solution

The fourth proportional to 1,756.35, 2,634.53 and 1,680.45 is: 2,520.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.35 : 2,634.53 = 1,680.45 : x
  2. Step 2: Convert to fraction form
    1,756.35/2,634.53 = 1,680.45/x
  3. Step 3: Cross multiply
    1,756.35x = 2,634.53 × 1,680.45
  4. Step 4: Simplify right side
    1,756.35x = 4,427,174.36
  5. Step 5: Solve for x
    x = 4,427,174.36/1,756.35
  6. Step 6: Final answer
    x = 2,520.67

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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.