Home / 2,891,885.40-3,990,802.32-1,602,809.10

Finding the Fourth Proportional to 2,891,885.40, 3,990,802.32 and 1,602,809.10

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Solution

The fourth proportional to 2,891,885.40, 3,990,802.32 and 1,602,809.10 is: 2,211,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,885.40 : 3,990,802.32 = 1,602,809.10 : x
  2. Step 2: Convert to fraction form
    2,891,885.40/3,990,802.32 = 1,602,809.10/x
  3. Step 3: Cross multiply
    2,891,885.40x = 3,990,802.32 × 1,602,809.10
  4. Step 4: Simplify right side
    2,891,885.40x = 6,396,494,274,797.11
  5. Step 5: Solve for x
    x = 6,396,494,274,797.11/2,891,885.40
  6. Step 6: Final answer
    x = 2,211,876.82

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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.