Home / 2,121,139.78-2,927,233.96-1,154,331.34

Finding the Fourth Proportional to 2,121,139.78, 2,927,233.96 and 1,154,331.34

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Solution

The fourth proportional to 2,121,139.78, 2,927,233.96 and 1,154,331.34 is: 1,593,010.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,139.78 : 2,927,233.96 = 1,154,331.34 : x
  2. Step 2: Convert to fraction form
    2,121,139.78/2,927,233.96 = 1,154,331.34/x
  3. Step 3: Cross multiply
    2,121,139.78x = 2,927,233.96 × 1,154,331.34
  4. Step 4: Simplify right side
    2,121,139.78x = 3,378,997,889,336.39
  5. Step 5: Solve for x
    x = 3,378,997,889,336.39/2,121,139.78
  6. Step 6: Final answer
    x = 1,593,010.48

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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.