Home / 6,428.02-8,872.32-4,195.48

Finding the Fourth Proportional to 6,428.02, 8,872.32 and 4,195.48

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Solution

The fourth proportional to 6,428.02, 8,872.32 and 4,195.48 is: 5,790.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.02 : 8,872.32 = 4,195.48 : x
  2. Step 2: Convert to fraction form
    6,428.02/8,872.32 = 4,195.48/x
  3. Step 3: Cross multiply
    6,428.02x = 8,872.32 × 4,195.48
  4. Step 4: Simplify right side
    6,428.02x = 37,223,641.11
  5. Step 5: Solve for x
    x = 37,223,641.11/6,428.02
  6. Step 6: Final answer
    x = 5,790.84

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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.