Home / 6,819.96-9,411.48-4,131.30

Finding the Fourth Proportional to 6,819.96, 9,411.48 and 4,131.30

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Solution

The fourth proportional to 6,819.96, 9,411.48 and 4,131.30 is: 5,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.96 : 9,411.48 = 4,131.30 : x
  2. Step 2: Convert to fraction form
    6,819.96/9,411.48 = 4,131.30/x
  3. Step 3: Cross multiply
    6,819.96x = 9,411.48 × 4,131.30
  4. Step 4: Simplify right side
    6,819.96x = 38,881,647.32
  5. Step 5: Solve for x
    x = 38,881,647.32/6,819.96
  6. Step 6: Final answer
    x = 5,701.15

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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.