Home / 3,790.19-5,685.10-1,681.22

Finding the Fourth Proportional to 3,790.19, 5,685.10 and 1,681.22

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Solution

The fourth proportional to 3,790.19, 5,685.10 and 1,681.22 is: 2,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.19 : 5,685.10 = 1,681.22 : x
  2. Step 2: Convert to fraction form
    3,790.19/5,685.10 = 1,681.22/x
  3. Step 3: Cross multiply
    3,790.19x = 5,685.10 × 1,681.22
  4. Step 4: Simplify right side
    3,790.19x = 9,557,913.83
  5. Step 5: Solve for x
    x = 9,557,913.83/3,790.19
  6. Step 6: Final answer
    x = 2,521.75

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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.