Home / 4,837.40-7,239.90-4,254.20

Finding the Fourth Proportional to 4,837.40, 7,239.90 and 4,254.20

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Solution

The fourth proportional to 4,837.40, 7,239.90 and 4,254.20 is: 6,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,837.40 : 7,239.90 = 4,254.20 : x
  2. Step 2: Convert to fraction form
    4,837.40/7,239.90 = 4,254.20/x
  3. Step 3: Cross multiply
    4,837.40x = 7,239.90 × 4,254.20
  4. Step 4: Simplify right side
    4,837.40x = 30,799,982.58
  5. Step 5: Solve for x
    x = 30,799,982.58/4,837.40
  6. Step 6: Final answer
    x = 6,367.05

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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.