Home / 2,165,821.79-2,988,869.31-1,185,744.28

Finding the Fourth Proportional to 2,165,821.79, 2,988,869.31 and 1,185,744.28

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Solution

The fourth proportional to 2,165,821.79, 2,988,869.31 and 1,185,744.28 is: 1,636,346.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,821.79 : 2,988,869.31 = 1,185,744.28 : x
  2. Step 2: Convert to fraction form
    2,165,821.79/2,988,869.31 = 1,185,744.28/x
  3. Step 3: Cross multiply
    2,165,821.79x = 2,988,869.31 × 1,185,744.28
  4. Step 4: Simplify right side
    2,165,821.79x = 3,544,034,688,000.05
  5. Step 5: Solve for x
    x = 3,544,034,688,000.05/2,165,821.79
  6. Step 6: Final answer
    x = 1,636,346.40

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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.