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Finding the Fourth Proportional to 6,280.88, 8,669.40 and 5,030.64

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Solution

The fourth proportional to 6,280.88, 8,669.40 and 5,030.64 is: 6,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.88 : 8,669.40 = 5,030.64 : x
  2. Step 2: Convert to fraction form
    6,280.88/8,669.40 = 5,030.64/x
  3. Step 3: Cross multiply
    6,280.88x = 8,669.40 × 5,030.64
  4. Step 4: Simplify right side
    6,280.88x = 43,612,630.42
  5. Step 5: Solve for x
    x = 43,612,630.42/6,280.88
  6. Step 6: Final answer
    x = 6,943.71

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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.