Home / 3,128,519.64-4,315,126.80-2,871,225.92

Finding the Fourth Proportional to 3,128,519.64, 4,315,126.80 and 2,871,225.92

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Solution

The fourth proportional to 3,128,519.64, 4,315,126.80 and 2,871,225.92 is: 3,960,244.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,519.64 : 4,315,126.80 = 2,871,225.92 : x
  2. Step 2: Convert to fraction form
    3,128,519.64/4,315,126.80 = 2,871,225.92/x
  3. Step 3: Cross multiply
    3,128,519.64x = 4,315,126.80 × 2,871,225.92
  4. Step 4: Simplify right side
    3,128,519.64x = 12,389,703,916,246.65
  5. Step 5: Solve for x
    x = 12,389,703,916,246.65/3,128,519.64
  6. Step 6: Final answer
    x = 3,960,244.89

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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.