Home / 5,030.31-7,539.39-2,105.19

Finding the Fourth Proportional to 5,030.31, 7,539.39 and 2,105.19

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Solution

The fourth proportional to 5,030.31, 7,539.39 and 2,105.19 is: 3,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,030.31 : 7,539.39 = 2,105.19 : x
  2. Step 2: Convert to fraction form
    5,030.31/7,539.39 = 2,105.19/x
  3. Step 3: Cross multiply
    5,030.31x = 7,539.39 × 2,105.19
  4. Step 4: Simplify right side
    5,030.31x = 15,871,848.43
  5. Step 5: Solve for x
    x = 15,871,848.43/5,030.31
  6. Step 6: Final answer
    x = 3,155.24

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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.