Home / 2,572-3,837.80-2,415.28

Finding the Fourth Proportional to 2,572, 3,837.80 and 2,415.28

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Solution

The fourth proportional to 2,572, 3,837.80 and 2,415.28 is: 3,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572 : 3,837.80 = 2,415.28 : x
  2. Step 2: Convert to fraction form
    2,572/3,837.80 = 2,415.28/x
  3. Step 3: Cross multiply
    2,572x = 3,837.80 × 2,415.28
  4. Step 4: Simplify right side
    2,572x = 9,269,361.58
  5. Step 5: Solve for x
    x = 9,269,361.58/2,572
  6. Step 6: Final answer
    x = 3,603.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.