Home / 5,143.12-7,707.90-2,804.14

Finding the Fourth Proportional to 5,143.12, 7,707.90 and 2,804.14

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Solution

The fourth proportional to 5,143.12, 7,707.90 and 2,804.14 is: 4,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.12 : 7,707.90 = 2,804.14 : x
  2. Step 2: Convert to fraction form
    5,143.12/7,707.90 = 2,804.14/x
  3. Step 3: Cross multiply
    5,143.12x = 7,707.90 × 2,804.14
  4. Step 4: Simplify right side
    5,143.12x = 21,614,030.71
  5. Step 5: Solve for x
    x = 21,614,030.71/5,143.12
  6. Step 6: Final answer
    x = 4,202.51

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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.