Home / 2,459.21-3,393.63-1,397.06

Finding the Fourth Proportional to 2,459.21, 3,393.63 and 1,397.06

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Solution

The fourth proportional to 2,459.21, 3,393.63 and 1,397.06 is: 1,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.21 : 3,393.63 = 1,397.06 : x
  2. Step 2: Convert to fraction form
    2,459.21/3,393.63 = 1,397.06/x
  3. Step 3: Cross multiply
    2,459.21x = 3,393.63 × 1,397.06
  4. Step 4: Simplify right side
    2,459.21x = 4,741,104.73
  5. Step 5: Solve for x
    x = 4,741,104.73/2,459.21
  6. Step 6: Final answer
    x = 1,927.90

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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.