Home / 2,165,908.37-2,988,835.14-1,185,657.77

Finding the Fourth Proportional to 2,165,908.37, 2,988,835.14 and 1,185,657.77

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Solution

The fourth proportional to 2,165,908.37, 2,988,835.14 and 1,185,657.77 is: 1,636,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,908.37 : 2,988,835.14 = 1,185,657.77 : x
  2. Step 2: Convert to fraction form
    2,165,908.37/2,988,835.14 = 1,185,657.77/x
  3. Step 3: Cross multiply
    2,165,908.37x = 2,988,835.14 × 1,185,657.77
  4. Step 4: Simplify right side
    2,165,908.37x = 3,543,735,610,015.91
  5. Step 5: Solve for x
    x = 3,543,735,610,015.91/2,165,908.37
  6. Step 6: Final answer
    x = 1,636,142.90

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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.