Home / 1,208.79-1,675.95-1,168.29

Finding the Fourth Proportional to 1,208.79, 1,675.95 and 1,168.29

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Solution

The fourth proportional to 1,208.79, 1,675.95 and 1,168.29 is: 1,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208.79 : 1,675.95 = 1,168.29 : x
  2. Step 2: Convert to fraction form
    1,208.79/1,675.95 = 1,168.29/x
  3. Step 3: Cross multiply
    1,208.79x = 1,675.95 × 1,168.29
  4. Step 4: Simplify right side
    1,208.79x = 1,957,995.63
  5. Step 5: Solve for x
    x = 1,957,995.63/1,208.79
  6. Step 6: Final answer
    x = 1,619.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.