Home / 6,310.02-8,707.40-3,790.63

Finding the Fourth Proportional to 6,310.02, 8,707.40 and 3,790.63

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Solution

The fourth proportional to 6,310.02, 8,707.40 and 3,790.63 is: 5,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.02 : 8,707.40 = 3,790.63 : x
  2. Step 2: Convert to fraction form
    6,310.02/8,707.40 = 3,790.63/x
  3. Step 3: Cross multiply
    6,310.02x = 8,707.40 × 3,790.63
  4. Step 4: Simplify right side
    6,310.02x = 33,006,531.66
  5. Step 5: Solve for x
    x = 33,006,531.66/6,310.02
  6. Step 6: Final answer
    x = 5,230.81

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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.