Home / 2,837.75-3,916.15-1,561.63

Finding the Fourth Proportional to 2,837.75, 3,916.15 and 1,561.63

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Solution

The fourth proportional to 2,837.75, 3,916.15 and 1,561.63 is: 2,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.75 : 3,916.15 = 1,561.63 : x
  2. Step 2: Convert to fraction form
    2,837.75/3,916.15 = 1,561.63/x
  3. Step 3: Cross multiply
    2,837.75x = 3,916.15 × 1,561.63
  4. Step 4: Simplify right side
    2,837.75x = 6,115,570.97
  5. Step 5: Solve for x
    x = 6,115,570.97/2,837.75
  6. Step 6: Final answer
    x = 2,155.08

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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.