Home / 2,153,772.20-2,972,205.64-1,186,902.49

Finding the Fourth Proportional to 2,153,772.20, 2,972,205.64 and 1,186,902.49

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Solution

The fourth proportional to 2,153,772.20, 2,972,205.64 and 1,186,902.49 is: 1,637,925.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,772.20 : 2,972,205.64 = 1,186,902.49 : x
  2. Step 2: Convert to fraction form
    2,153,772.20/2,972,205.64 = 1,186,902.49/x
  3. Step 3: Cross multiply
    2,153,772.20x = 2,972,205.64 × 1,186,902.49
  4. Step 4: Simplify right side
    2,153,772.20x = 3,527,718,274,908.04
  5. Step 5: Solve for x
    x = 3,527,718,274,908.04/2,153,772.20
  6. Step 6: Final answer
    x = 1,637,925.44

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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.