Home / 4,127.79-6,195.81-1,938.09

Finding the Fourth Proportional to 4,127.79, 6,195.81 and 1,938.09

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Solution

The fourth proportional to 4,127.79, 6,195.81 and 1,938.09 is: 2,909.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.79 : 6,195.81 = 1,938.09 : x
  2. Step 2: Convert to fraction form
    4,127.79/6,195.81 = 1,938.09/x
  3. Step 3: Cross multiply
    4,127.79x = 6,195.81 × 1,938.09
  4. Step 4: Simplify right side
    4,127.79x = 12,008,037.40
  5. Step 5: Solve for x
    x = 12,008,037.40/4,127.79
  6. Step 6: Final answer
    x = 2,909.07

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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.