Home / 3,689,280-5,091,206.40-2,079,648

Finding the Fourth Proportional to 3,689,280, 5,091,206.40 and 2,079,648

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Solution

The fourth proportional to 3,689,280, 5,091,206.40 and 2,079,648 is: 2,869,914.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689,280 : 5,091,206.40 = 2,079,648 : x
  2. Step 2: Convert to fraction form
    3,689,280/5,091,206.40 = 2,079,648/x
  3. Step 3: Cross multiply
    3,689,280x = 5,091,206.40 × 2,079,648
  4. Step 4: Simplify right side
    3,689,280x = 10,587,917,207,347.20
  5. Step 5: Solve for x
    x = 10,587,917,207,347.20/3,689,280
  6. Step 6: Final answer
    x = 2,869,914.24

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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.