Home / 2,415.32-3,331.91-1,419.63

Finding the Fourth Proportional to 2,415.32, 3,331.91 and 1,419.63

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Solution

The fourth proportional to 2,415.32, 3,331.91 and 1,419.63 is: 1,958.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.32 : 3,331.91 = 1,419.63 : x
  2. Step 2: Convert to fraction form
    2,415.32/3,331.91 = 1,419.63/x
  3. Step 3: Cross multiply
    2,415.32x = 3,331.91 × 1,419.63
  4. Step 4: Simplify right side
    2,415.32x = 4,730,066.46
  5. Step 5: Solve for x
    x = 4,730,066.46/2,415.32
  6. Step 6: Final answer
    x = 1,958.36

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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.