Home / 2,415.16-3,620.02-1,439.22

Finding the Fourth Proportional to 2,415.16, 3,620.02 and 1,439.22

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Solution

The fourth proportional to 2,415.16, 3,620.02 and 1,439.22 is: 2,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.16 : 3,620.02 = 1,439.22 : x
  2. Step 2: Convert to fraction form
    2,415.16/3,620.02 = 1,439.22/x
  3. Step 3: Cross multiply
    2,415.16x = 3,620.02 × 1,439.22
  4. Step 4: Simplify right side
    2,415.16x = 5,210,005.18
  5. Step 5: Solve for x
    x = 5,210,005.18/2,415.16
  6. Step 6: Final answer
    x = 2,157.21

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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.