Home / 4,816.42-6,644.20-3,140.63

Finding the Fourth Proportional to 4,816.42, 6,644.20 and 3,140.63

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Solution

The fourth proportional to 4,816.42, 6,644.20 and 3,140.63 is: 4,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,816.42 : 6,644.20 = 3,140.63 : x
  2. Step 2: Convert to fraction form
    4,816.42/6,644.20 = 3,140.63/x
  3. Step 3: Cross multiply
    4,816.42x = 6,644.20 × 3,140.63
  4. Step 4: Simplify right side
    4,816.42x = 20,866,973.85
  5. Step 5: Solve for x
    x = 20,866,973.85/4,816.42
  6. Step 6: Final answer
    x = 4,332.47

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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.