Home / 1,880.78-2,596.04-1,217.67

Finding the Fourth Proportional to 1,880.78, 2,596.04 and 1,217.67

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Solution

The fourth proportional to 1,880.78, 2,596.04 and 1,217.67 is: 1,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.78 : 2,596.04 = 1,217.67 : x
  2. Step 2: Convert to fraction form
    1,880.78/2,596.04 = 1,217.67/x
  3. Step 3: Cross multiply
    1,880.78x = 2,596.04 × 1,217.67
  4. Step 4: Simplify right side
    1,880.78x = 3,161,113.94
  5. Step 5: Solve for x
    x = 3,161,113.94/1,880.78
  6. Step 6: Final answer
    x = 1,680.75

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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.