Home / 2,165,748.51-2,987,425.39-1,391,118.58

Finding the Fourth Proportional to 2,165,748.51, 2,987,425.39 and 1,391,118.58

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Solution

The fourth proportional to 2,165,748.51, 2,987,425.39 and 1,391,118.58 is: 1,918,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,748.51 : 2,987,425.39 = 1,391,118.58 : x
  2. Step 2: Convert to fraction form
    2,165,748.51/2,987,425.39 = 1,391,118.58/x
  3. Step 3: Cross multiply
    2,165,748.51x = 2,987,425.39 × 1,391,118.58
  4. Step 4: Simplify right side
    2,165,748.51x = 4,155,862,966,392.75
  5. Step 5: Solve for x
    x = 4,155,862,966,392.75/2,165,748.51
  6. Step 6: Final answer
    x = 1,918,903.76

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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.