Home / 3,139.98-4,706.06-1,290.08

Finding the Fourth Proportional to 3,139.98, 4,706.06 and 1,290.08

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Solution

The fourth proportional to 3,139.98, 4,706.06 and 1,290.08 is: 1,933.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.98 : 4,706.06 = 1,290.08 : x
  2. Step 2: Convert to fraction form
    3,139.98/4,706.06 = 1,290.08/x
  3. Step 3: Cross multiply
    3,139.98x = 4,706.06 × 1,290.08
  4. Step 4: Simplify right side
    3,139.98x = 6,071,163.90
  5. Step 5: Solve for x
    x = 6,071,163.90/3,139.98
  6. Step 6: Final answer
    x = 1,933.50

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1.5x scale

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.