Home / 2,837.18-3,915.33-1,578.35

Finding the Fourth Proportional to 2,837.18, 3,915.33 and 1,578.35

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Solution

The fourth proportional to 2,837.18, 3,915.33 and 1,578.35 is: 2,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.18 : 3,915.33 = 1,578.35 : x
  2. Step 2: Convert to fraction form
    2,837.18/3,915.33 = 1,578.35/x
  3. Step 3: Cross multiply
    2,837.18x = 3,915.33 × 1,578.35
  4. Step 4: Simplify right side
    2,837.18x = 6,179,761.11
  5. Step 5: Solve for x
    x = 6,179,761.11/2,837.18
  6. Step 6: Final answer
    x = 2,178.14

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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.