Home / 3,851,693.79-5,315,272.47-2,132,777.40

Finding the Fourth Proportional to 3,851,693.79, 5,315,272.47 and 2,132,777.40

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Solution

The fourth proportional to 3,851,693.79, 5,315,272.47 and 2,132,777.40 is: 2,943,196.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851,693.79 : 5,315,272.47 = 2,132,777.40 : x
  2. Step 2: Convert to fraction form
    3,851,693.79/5,315,272.47 = 2,132,777.40/x
  3. Step 3: Cross multiply
    3,851,693.79x = 5,315,272.47 × 2,132,777.40
  4. Step 4: Simplify right side
    3,851,693.79x = 11,336,292,998,858.18
  5. Step 5: Solve for x
    x = 11,336,292,998,858.18/3,851,693.79
  6. Step 6: Final answer
    x = 2,943,196.84

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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.