Home / 3,091.65-4,637.81-1,531.35

Finding the Fourth Proportional to 3,091.65, 4,637.81 and 1,531.35

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Solution

The fourth proportional to 3,091.65, 4,637.81 and 1,531.35 is: 2,297.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.65 : 4,637.81 = 1,531.35 : x
  2. Step 2: Convert to fraction form
    3,091.65/4,637.81 = 1,531.35/x
  3. Step 3: Cross multiply
    3,091.65x = 4,637.81 × 1,531.35
  4. Step 4: Simplify right side
    3,091.65x = 7,102,110.34
  5. Step 5: Solve for x
    x = 7,102,110.34/3,091.65
  6. Step 6: Final answer
    x = 2,297.19

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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.