Home / 3,903,721.13-5,387,303.54-2,161,390.52

Finding the Fourth Proportional to 3,903,721.13, 5,387,303.54 and 2,161,390.52

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Solution

The fourth proportional to 3,903,721.13, 5,387,303.54 and 2,161,390.52 is: 2,982,812.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903,721.13 : 5,387,303.54 = 2,161,390.52 : x
  2. Step 2: Convert to fraction form
    3,903,721.13/5,387,303.54 = 2,161,390.52/x
  3. Step 3: Cross multiply
    3,903,721.13x = 5,387,303.54 × 2,161,390.52
  4. Step 4: Simplify right side
    3,903,721.13x = 11,644,066,799,718.44
  5. Step 5: Solve for x
    x = 11,644,066,799,718.44/3,903,721.13
  6. Step 6: Final answer
    x = 2,982,812.15

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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.