Home / 1,900.13-2,837.70-1,640.66

Finding the Fourth Proportional to 1,900.13, 2,837.70 and 1,640.66

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Solution

The fourth proportional to 1,900.13, 2,837.70 and 1,640.66 is: 2,450.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.13 : 2,837.70 = 1,640.66 : x
  2. Step 2: Convert to fraction form
    1,900.13/2,837.70 = 1,640.66/x
  3. Step 3: Cross multiply
    1,900.13x = 2,837.70 × 1,640.66
  4. Step 4: Simplify right side
    1,900.13x = 4,655,686.69
  5. Step 5: Solve for x
    x = 4,655,686.69/1,900.13
  6. Step 6: Final answer
    x = 2,450.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.