Home / 3,986,905.71-5,501,575.02-2,220,668.81

Finding the Fourth Proportional to 3,986,905.71, 5,501,575.02 and 2,220,668.81

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Solution

The fourth proportional to 3,986,905.71, 5,501,575.02 and 2,220,668.81 is: 3,064,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,905.71 : 5,501,575.02 = 2,220,668.81 : x
  2. Step 2: Convert to fraction form
    3,986,905.71/5,501,575.02 = 2,220,668.81/x
  3. Step 3: Cross multiply
    3,986,905.71x = 5,501,575.02 × 2,220,668.81
  4. Step 4: Simplify right side
    3,986,905.71x = 12,217,176,052,789.12
  5. Step 5: Solve for x
    x = 12,217,176,052,789.12/3,986,905.71
  6. Step 6: Final answer
    x = 3,064,325.30

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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.