Home / 2,158,077.36-2,978,147.10-1,191,208.08

Finding the Fourth Proportional to 2,158,077.36, 2,978,147.10 and 1,191,208.08

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Solution

The fourth proportional to 2,158,077.36, 2,978,147.10 and 1,191,208.08 is: 1,643,867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,077.36 : 2,978,147.10 = 1,191,208.08 : x
  2. Step 2: Convert to fraction form
    2,158,077.36/2,978,147.10 = 1,191,208.08/x
  3. Step 3: Cross multiply
    2,158,077.36x = 2,978,147.10 × 1,191,208.08
  4. Step 4: Simplify right side
    2,158,077.36x = 3,547,592,888,948.57
  5. Step 5: Solve for x
    x = 3,547,592,888,948.57/2,158,077.36
  6. Step 6: Final answer
    x = 1,643,867.34

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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.