Home / 1,686.83-2,539.36-1,517.30

Finding the Fourth Proportional to 1,686.83, 2,539.36 and 1,517.30

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Solution

The fourth proportional to 1,686.83, 2,539.36 and 1,517.30 is: 2,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.83 : 2,539.36 = 1,517.30 : x
  2. Step 2: Convert to fraction form
    1,686.83/2,539.36 = 1,517.30/x
  3. Step 3: Cross multiply
    1,686.83x = 2,539.36 × 1,517.30
  4. Step 4: Simplify right side
    1,686.83x = 3,852,970.93
  5. Step 5: Solve for x
    x = 3,852,970.93/1,686.83
  6. Step 6: Final answer
    x = 2,284.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.