Home / 2,158,134.32-2,978,224.91-1,191,264.36

Finding the Fourth Proportional to 2,158,134.32, 2,978,224.91 and 1,191,264.36

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Solution

The fourth proportional to 2,158,134.32, 2,978,224.91 and 1,191,264.36 is: 1,643,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,134.32 : 2,978,224.91 = 1,191,264.36 : x
  2. Step 2: Convert to fraction form
    2,158,134.32/2,978,224.91 = 1,191,264.36/x
  3. Step 3: Cross multiply
    2,158,134.32x = 2,978,224.91 × 1,191,264.36
  4. Step 4: Simplify right side
    2,158,134.32x = 3,547,853,176,456.08
  5. Step 5: Solve for x
    x = 3,547,853,176,456.08/2,158,134.32
  6. Step 6: Final answer
    x = 1,643,944.56

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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.