Home / 3,896,336.80-5,376,479.04-2,153,770.78

Finding the Fourth Proportional to 3,896,336.80, 5,376,479.04 and 2,153,770.78

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Solution

The fourth proportional to 3,896,336.80, 5,376,479.04 and 2,153,770.78 is: 2,971,946.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896,336.80 : 5,376,479.04 = 2,153,770.78 : x
  2. Step 2: Convert to fraction form
    3,896,336.80/5,376,479.04 = 2,153,770.78/x
  3. Step 3: Cross multiply
    3,896,336.80x = 5,376,479.04 × 2,153,770.78
  4. Step 4: Simplify right side
    3,896,336.80x = 11,579,703,455,634.45
  5. Step 5: Solve for x
    x = 11,579,703,455,634.45/3,896,336.80
  6. Step 6: Final answer
    x = 2,971,946.23

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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.