Home / 7,638.02-10,539.41-4,280.64

Finding the Fourth Proportional to 7,638.02, 10,539.41 and 4,280.64

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Solution

The fourth proportional to 7,638.02, 10,539.41 and 4,280.64 is: 5,906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.02 : 10,539.41 = 4,280.64 : x
  2. Step 2: Convert to fraction form
    7,638.02/10,539.41 = 4,280.64/x
  3. Step 3: Cross multiply
    7,638.02x = 10,539.41 × 4,280.64
  4. Step 4: Simplify right side
    7,638.02x = 45,115,420.02
  5. Step 5: Solve for x
    x = 45,115,420.02/7,638.02
  6. Step 6: Final answer
    x = 5,906.69

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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.