Home / 2,097,979.20-2,895,127.20-1,238,816.16

Finding the Fourth Proportional to 2,097,979.20, 2,895,127.20 and 1,238,816.16

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Solution

The fourth proportional to 2,097,979.20, 2,895,127.20 and 1,238,816.16 is: 1,709,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097,979.20 : 2,895,127.20 = 1,238,816.16 : x
  2. Step 2: Convert to fraction form
    2,097,979.20/2,895,127.20 = 1,238,816.16/x
  3. Step 3: Cross multiply
    2,097,979.20x = 2,895,127.20 × 1,238,816.16
  4. Step 4: Simplify right side
    2,097,979.20x = 3,586,530,360,615.55
  5. Step 5: Solve for x
    x = 3,586,530,360,615.55/2,097,979.20
  6. Step 6: Final answer
    x = 1,709,516.64

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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.