Home / 3,128,517.81-4,315,124.19-2,871,224.15

Finding the Fourth Proportional to 3,128,517.81, 4,315,124.19 and 2,871,224.15

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Solution

The fourth proportional to 3,128,517.81, 4,315,124.19 and 2,871,224.15 is: 3,960,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,517.81 : 4,315,124.19 = 2,871,224.15 : x
  2. Step 2: Convert to fraction form
    3,128,517.81/4,315,124.19 = 2,871,224.15/x
  3. Step 3: Cross multiply
    3,128,517.81x = 4,315,124.19 × 2,871,224.15
  4. Step 4: Simplify right side
    3,128,517.81x = 12,389,688,757,618.02
  5. Step 5: Solve for x
    x = 12,389,688,757,618.02/3,128,517.81
  6. Step 6: Final answer
    x = 3,960,242.36

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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.