Home / 2,166,275.07-2,989,553.04-1,199,405.39

Finding the Fourth Proportional to 2,166,275.07, 2,989,553.04 and 1,199,405.39

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Solution

The fourth proportional to 2,166,275.07, 2,989,553.04 and 1,199,405.39 is: 1,655,231.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,275.07 : 2,989,553.04 = 1,199,405.39 : x
  2. Step 2: Convert to fraction form
    2,166,275.07/2,989,553.04 = 1,199,405.39/x
  3. Step 3: Cross multiply
    2,166,275.07x = 2,989,553.04 × 1,199,405.39
  4. Step 4: Simplify right side
    2,166,275.07x = 3,585,686,014,919.12
  5. Step 5: Solve for x
    x = 3,585,686,014,919.12/2,166,275.07
  6. Step 6: Final answer
    x = 1,655,231.17

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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.