Home / 2,415.36-3,629.12-2,318.16

Finding the Fourth Proportional to 2,415.36, 3,629.12 and 2,318.16

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Solution

The fourth proportional to 2,415.36, 3,629.12 and 2,318.16 is: 3,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.36 : 3,629.12 = 2,318.16 : x
  2. Step 2: Convert to fraction form
    2,415.36/3,629.12 = 2,318.16/x
  3. Step 3: Cross multiply
    2,415.36x = 3,629.12 × 2,318.16
  4. Step 4: Simplify right side
    2,415.36x = 8,412,880.82
  5. Step 5: Solve for x
    x = 8,412,880.82/2,415.36
  6. Step 6: Final answer
    x = 3,483.08

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1.5x scale

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.