Home / 2,575,221.20-3,862,831.80-1,911,669.20

Finding the Fourth Proportional to 2,575,221.20, 3,862,831.80 and 1,911,669.20

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Solution

The fourth proportional to 2,575,221.20, 3,862,831.80 and 1,911,669.20 is: 2,867,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575,221.20 : 3,862,831.80 = 1,911,669.20 : x
  2. Step 2: Convert to fraction form
    2,575,221.20/3,862,831.80 = 1,911,669.20/x
  3. Step 3: Cross multiply
    2,575,221.20x = 3,862,831.80 × 1,911,669.20
  4. Step 4: Simplify right side
    2,575,221.20x = 7,384,456,576,840.56
  5. Step 5: Solve for x
    x = 7,384,456,576,840.56/2,575,221.20
  6. Step 6: Final answer
    x = 2,867,503.80

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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.