Home / 2,860.31-3,946.98-1,600.97

Finding the Fourth Proportional to 2,860.31, 3,946.98 and 1,600.97

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Solution

The fourth proportional to 2,860.31, 3,946.98 and 1,600.97 is: 2,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.31 : 3,946.98 = 1,600.97 : x
  2. Step 2: Convert to fraction form
    2,860.31/3,946.98 = 1,600.97/x
  3. Step 3: Cross multiply
    2,860.31x = 3,946.98 × 1,600.97
  4. Step 4: Simplify right side
    2,860.31x = 6,318,973.83
  5. Step 5: Solve for x
    x = 6,318,973.83/2,860.31
  6. Step 6: Final answer
    x = 2,209.19

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1.5x scale

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.