Home / 4,130.48-6,190.68-2,891.12

Finding the Fourth Proportional to 4,130.48, 6,190.68 and 2,891.12

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Solution

The fourth proportional to 4,130.48, 6,190.68 and 2,891.12 is: 4,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130.48 : 6,190.68 = 2,891.12 : x
  2. Step 2: Convert to fraction form
    4,130.48/6,190.68 = 2,891.12/x
  3. Step 3: Cross multiply
    4,130.48x = 6,190.68 × 2,891.12
  4. Step 4: Simplify right side
    4,130.48x = 17,897,998.76
  5. Step 5: Solve for x
    x = 17,897,998.76/4,130.48
  6. Step 6: Final answer
    x = 4,333.15

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1.5x scale

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.