Home / 5,140.44-7,710.81-2,020.32

Finding the Fourth Proportional to 5,140.44, 7,710.81 and 2,020.32

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Solution

The fourth proportional to 5,140.44, 7,710.81 and 2,020.32 is: 3,030.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.44 : 7,710.81 = 2,020.32 : x
  2. Step 2: Convert to fraction form
    5,140.44/7,710.81 = 2,020.32/x
  3. Step 3: Cross multiply
    5,140.44x = 7,710.81 × 2,020.32
  4. Step 4: Simplify right side
    5,140.44x = 15,578,303.66
  5. Step 5: Solve for x
    x = 15,578,303.66/5,140.44
  6. Step 6: Final answer
    x = 3,030.54

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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.