Home / 3,121,937.83-4,308,967.29-1,897,983.28

Finding the Fourth Proportional to 3,121,937.83, 4,308,967.29 and 1,897,983.28

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Solution

The fourth proportional to 3,121,937.83, 4,308,967.29 and 1,897,983.28 is: 2,619,638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,937.83 : 4,308,967.29 = 1,897,983.28 : x
  2. Step 2: Convert to fraction form
    3,121,937.83/4,308,967.29 = 1,897,983.28/x
  3. Step 3: Cross multiply
    3,121,937.83x = 4,308,967.29 × 1,897,983.28
  4. Step 4: Simplify right side
    3,121,937.83x = 8,178,347,870,486.91
  5. Step 5: Solve for x
    x = 8,178,347,870,486.91/3,121,937.83
  6. Step 6: Final answer
    x = 2,619,638.29

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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.