Home / 2,167,191.09-2,990,746.13-1,307,585.25

Finding the Fourth Proportional to 2,167,191.09, 2,990,746.13 and 1,307,585.25

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Solution

The fourth proportional to 2,167,191.09, 2,990,746.13 and 1,307,585.25 is: 1,804,481.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167,191.09 : 2,990,746.13 = 1,307,585.25 : x
  2. Step 2: Convert to fraction form
    2,167,191.09/2,990,746.13 = 1,307,585.25/x
  3. Step 3: Cross multiply
    2,167,191.09x = 2,990,746.13 × 1,307,585.25
  4. Step 4: Simplify right side
    2,167,191.09x = 3,910,655,519,544.66
  5. Step 5: Solve for x
    x = 3,910,655,519,544.66/2,167,191.09
  6. Step 6: Final answer
    x = 1,804,481.17

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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.