Home / 2,878,078.11-3,971,727.22-1,571,330.10

Finding the Fourth Proportional to 2,878,078.11, 3,971,727.22 and 1,571,330.10

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Solution

The fourth proportional to 2,878,078.11, 3,971,727.22 and 1,571,330.10 is: 2,168,424.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878,078.11 : 3,971,727.22 = 1,571,330.10 : x
  2. Step 2: Convert to fraction form
    2,878,078.11/3,971,727.22 = 1,571,330.10/x
  3. Step 3: Cross multiply
    2,878,078.11x = 3,971,727.22 × 1,571,330.10
  4. Step 4: Simplify right side
    2,878,078.11x = 6,240,894,548,106.58
  5. Step 5: Solve for x
    x = 6,240,894,548,106.58/2,878,078.11
  6. Step 6: Final answer
    x = 2,168,424.32

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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.