Home / 2,891,421.80-3,990,185.71-1,602,283.71

Finding the Fourth Proportional to 2,891,421.80, 3,990,185.71 and 1,602,283.71

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Solution

The fourth proportional to 2,891,421.80, 3,990,185.71 and 1,602,283.71 is: 2,211,164.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,421.80 : 3,990,185.71 = 1,602,283.71 : x
  2. Step 2: Convert to fraction form
    2,891,421.80/3,990,185.71 = 1,602,283.71/x
  3. Step 3: Cross multiply
    2,891,421.80x = 3,990,185.71 × 1,602,283.71
  4. Step 4: Simplify right side
    2,891,421.80x = 6,393,409,573,965.27
  5. Step 5: Solve for x
    x = 6,393,409,573,965.27/2,891,421.80
  6. Step 6: Final answer
    x = 2,211,164.62

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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.