Home / 6,436.63-8,876.47-4,200.22

Finding the Fourth Proportional to 6,436.63, 8,876.47 and 4,200.22

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Solution

The fourth proportional to 6,436.63, 8,876.47 and 4,200.22 is: 5,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.63 : 8,876.47 = 4,200.22 : x
  2. Step 2: Convert to fraction form
    6,436.63/8,876.47 = 4,200.22/x
  3. Step 3: Cross multiply
    6,436.63x = 8,876.47 × 4,200.22
  4. Step 4: Simplify right side
    6,436.63x = 37,283,061.44
  5. Step 5: Solve for x
    x = 37,283,061.44/6,436.63
  6. Step 6: Final answer
    x = 5,792.33

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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.