Home / 2,682,802.76-3,700,688.10-1,687,785.28

Finding the Fourth Proportional to 2,682,802.76, 3,700,688.10 and 1,687,785.28

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Solution

The fourth proportional to 2,682,802.76, 3,700,688.10 and 1,687,785.28 is: 2,328,149.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682,802.76 : 3,700,688.10 = 1,687,785.28 : x
  2. Step 2: Convert to fraction form
    2,682,802.76/3,700,688.10 = 1,687,785.28/x
  3. Step 3: Cross multiply
    2,682,802.76x = 3,700,688.10 × 1,687,785.28
  4. Step 4: Simplify right side
    2,682,802.76x = 6,245,966,901,051.17
  5. Step 5: Solve for x
    x = 6,245,966,901,051.17/2,682,802.76
  6. Step 6: Final answer
    x = 2,328,149.87

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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.