Home / 4,820.40-7,227.36-1,897.20

Finding the Fourth Proportional to 4,820.40, 7,227.36 and 1,897.20

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Solution

The fourth proportional to 4,820.40, 7,227.36 and 1,897.20 is: 2,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.40 : 7,227.36 = 1,897.20 : x
  2. Step 2: Convert to fraction form
    4,820.40/7,227.36 = 1,897.20/x
  3. Step 3: Cross multiply
    4,820.40x = 7,227.36 × 1,897.20
  4. Step 4: Simplify right side
    4,820.40x = 13,711,747.39
  5. Step 5: Solve for x
    x = 13,711,747.39/4,820.40
  6. Step 6: Final answer
    x = 2,844.52

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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.