Home / 2,913.40-4,370.10-1,680.18

Finding the Fourth Proportional to 2,913.40, 4,370.10 and 1,680.18

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Solution

The fourth proportional to 2,913.40, 4,370.10 and 1,680.18 is: 2,520.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.40 : 4,370.10 = 1,680.18 : x
  2. Step 2: Convert to fraction form
    2,913.40/4,370.10 = 1,680.18/x
  3. Step 3: Cross multiply
    2,913.40x = 4,370.10 × 1,680.18
  4. Step 4: Simplify right side
    2,913.40x = 7,342,554.62
  5. Step 5: Solve for x
    x = 7,342,554.62/2,913.40
  6. Step 6: Final answer
    x = 2,520.27

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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.