Home / 6,819.48-9,411.38-4,167.40

Finding the Fourth Proportional to 6,819.48, 9,411.38 and 4,167.40

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Solution

The fourth proportional to 6,819.48, 9,411.38 and 4,167.40 is: 5,751.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.48 : 9,411.38 = 4,167.40 : x
  2. Step 2: Convert to fraction form
    6,819.48/9,411.38 = 4,167.40/x
  3. Step 3: Cross multiply
    6,819.48x = 9,411.38 × 4,167.40
  4. Step 4: Simplify right side
    6,819.48x = 39,220,917.12
  5. Step 5: Solve for x
    x = 39,220,917.12/6,819.48
  6. Step 6: Final answer
    x = 5,751.31

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1.5x scale

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.