Home / 2,158,790.23-2,979,176.96-1,191,981.62

Finding the Fourth Proportional to 2,158,790.23, 2,979,176.96 and 1,191,981.62

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Solution

The fourth proportional to 2,158,790.23, 2,979,176.96 and 1,191,981.62 is: 1,644,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,790.23 : 2,979,176.96 = 1,191,981.62 : x
  2. Step 2: Convert to fraction form
    2,158,790.23/2,979,176.96 = 1,191,981.62/x
  3. Step 3: Cross multiply
    2,158,790.23x = 2,979,176.96 × 1,191,981.62
  4. Step 4: Simplify right side
    2,158,790.23x = 3,551,124,189,475.37
  5. Step 5: Solve for x
    x = 3,551,124,189,475.37/2,158,790.23
  6. Step 6: Final answer
    x = 1,644,960.28

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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.