Home / 5,089.56-7,023.26-2,820.76

Finding the Fourth Proportional to 5,089.56, 7,023.26 and 2,820.76

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Solution

The fourth proportional to 5,089.56, 7,023.26 and 2,820.76 is: 3,892.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.56 : 7,023.26 = 2,820.76 : x
  2. Step 2: Convert to fraction form
    5,089.56/7,023.26 = 2,820.76/x
  3. Step 3: Cross multiply
    5,089.56x = 7,023.26 × 2,820.76
  4. Step 4: Simplify right side
    5,089.56x = 19,810,930.88
  5. Step 5: Solve for x
    x = 19,810,930.88/5,089.56
  6. Step 6: Final answer
    x = 3,892.46

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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.