Home / 2,415.28-3,333.16-1,353.02

Finding the Fourth Proportional to 2,415.28, 3,333.16 and 1,353.02

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Solution

The fourth proportional to 2,415.28, 3,333.16 and 1,353.02 is: 1,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.28 : 3,333.16 = 1,353.02 : x
  2. Step 2: Convert to fraction form
    2,415.28/3,333.16 = 1,353.02/x
  3. Step 3: Cross multiply
    2,415.28x = 3,333.16 × 1,353.02
  4. Step 4: Simplify right side
    2,415.28x = 4,509,832.14
  5. Step 5: Solve for x
    x = 4,509,832.14/2,415.28
  6. Step 6: Final answer
    x = 1,867.21

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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.