Home / 5,214.40-7,825.56-1,930.60

Finding the Fourth Proportional to 5,214.40, 7,825.56 and 1,930.60

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Solution

The fourth proportional to 5,214.40, 7,825.56 and 1,930.60 is: 2,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.40 : 7,825.56 = 1,930.60 : x
  2. Step 2: Convert to fraction form
    5,214.40/7,825.56 = 1,930.60/x
  3. Step 3: Cross multiply
    5,214.40x = 7,825.56 × 1,930.60
  4. Step 4: Simplify right side
    5,214.40x = 15,108,026.14
  5. Step 5: Solve for x
    x = 15,108,026.14/5,214.40
  6. Step 6: Final answer
    x = 2,897.37

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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.