Home / 4,762.31-7,143.46-1,643.21

Finding the Fourth Proportional to 4,762.31, 7,143.46 and 1,643.21

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Solution

The fourth proportional to 4,762.31, 7,143.46 and 1,643.21 is: 2,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,762.31 : 7,143.46 = 1,643.21 : x
  2. Step 2: Convert to fraction form
    4,762.31/7,143.46 = 1,643.21/x
  3. Step 3: Cross multiply
    4,762.31x = 7,143.46 × 1,643.21
  4. Step 4: Simplify right side
    4,762.31x = 11,738,204.91
  5. Step 5: Solve for x
    x = 11,738,204.91/4,762.31
  6. Step 6: Final answer
    x = 2,464.81

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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.