Home / 4,220.10-6,328.53-1,880.82

Finding the Fourth Proportional to 4,220.10, 6,328.53 and 1,880.82

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Solution

The fourth proportional to 4,220.10, 6,328.53 and 1,880.82 is: 2,820.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.10 : 6,328.53 = 1,880.82 : x
  2. Step 2: Convert to fraction form
    4,220.10/6,328.53 = 1,880.82/x
  3. Step 3: Cross multiply
    4,220.10x = 6,328.53 × 1,880.82
  4. Step 4: Simplify right side
    4,220.10x = 11,902,825.79
  5. Step 5: Solve for x
    x = 11,902,825.79/4,220.10
  6. Step 6: Final answer
    x = 2,820.51

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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.