Home / 3,689,676.40-5,091,880.05-2,140,821.13

Finding the Fourth Proportional to 3,689,676.40, 5,091,880.05 and 2,140,821.13

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Solution

The fourth proportional to 3,689,676.40, 5,091,880.05 and 2,140,821.13 is: 2,954,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689,676.40 : 5,091,880.05 = 2,140,821.13 : x
  2. Step 2: Convert to fraction form
    3,689,676.40/5,091,880.05 = 2,140,821.13/x
  3. Step 3: Cross multiply
    3,689,676.40x = 5,091,880.05 × 2,140,821.13
  4. Step 4: Simplify right side
    3,689,676.40x = 10,900,804,402,465.46
  5. Step 5: Solve for x
    x = 10,900,804,402,465.46/3,689,676.40
  6. Step 6: Final answer
    x = 2,954,406.63

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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.