Home / 1,686.93-2,531.66-1,203.45

Finding the Fourth Proportional to 1,686.93, 2,531.66 and 1,203.45

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Solution

The fourth proportional to 1,686.93, 2,531.66 and 1,203.45 is: 1,806.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.93 : 2,531.66 = 1,203.45 : x
  2. Step 2: Convert to fraction form
    1,686.93/2,531.66 = 1,203.45/x
  3. Step 3: Cross multiply
    1,686.93x = 2,531.66 × 1,203.45
  4. Step 4: Simplify right side
    1,686.93x = 3,046,720.21
  5. Step 5: Solve for x
    x = 3,046,720.21/1,686.93
  6. Step 6: Final answer
    x = 1,806.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.