Home / 4,220.64-6,330.96-1,625.76

Finding the Fourth Proportional to 4,220.64, 6,330.96 and 1,625.76

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Solution

The fourth proportional to 4,220.64, 6,330.96 and 1,625.76 is: 2,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.64 : 6,330.96 = 1,625.76 : x
  2. Step 2: Convert to fraction form
    4,220.64/6,330.96 = 1,625.76/x
  3. Step 3: Cross multiply
    4,220.64x = 6,330.96 × 1,625.76
  4. Step 4: Simplify right side
    4,220.64x = 10,292,621.53
  5. Step 5: Solve for x
    x = 10,292,621.53/4,220.64
  6. Step 6: Final answer
    x = 2,438.64

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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.