Home / 2,415.90-3,333.99-1,353.60

Finding the Fourth Proportional to 2,415.90, 3,333.99 and 1,353.60

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Solution

The fourth proportional to 2,415.90, 3,333.99 and 1,353.60 is: 1,867.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.90 : 3,333.99 = 1,353.60 : x
  2. Step 2: Convert to fraction form
    2,415.90/3,333.99 = 1,353.60/x
  3. Step 3: Cross multiply
    2,415.90x = 3,333.99 × 1,353.60
  4. Step 4: Simplify right side
    2,415.90x = 4,512,888.86
  5. Step 5: Solve for x
    x = 4,512,888.86/2,415.90
  6. Step 6: Final answer
    x = 1,867.99

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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.