Home / 2,166,012.65-2,988,983.81-1,185,763.76

Finding the Fourth Proportional to 2,166,012.65, 2,988,983.81 and 1,185,763.76

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Solution

The fourth proportional to 2,166,012.65, 2,988,983.81 and 1,185,763.76 is: 1,636,291.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,012.65 : 2,988,983.81 = 1,185,763.76 : x
  2. Step 2: Convert to fraction form
    2,166,012.65/2,988,983.81 = 1,185,763.76/x
  3. Step 3: Cross multiply
    2,166,012.65x = 2,988,983.81 × 1,185,763.76
  4. Step 4: Simplify right side
    2,166,012.65x = 3,544,228,675,195.91
  5. Step 5: Solve for x
    x = 3,544,228,675,195.91/2,166,012.65
  6. Step 6: Final answer
    x = 1,636,291.77

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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.