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Finding the Fourth Proportional to 5,280.52, 7,926.90 and 3,090.82

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Solution

The fourth proportional to 5,280.52, 7,926.90 and 3,090.82 is: 4,639.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.52 : 7,926.90 = 3,090.82 : x
  2. Step 2: Convert to fraction form
    5,280.52/7,926.90 = 3,090.82/x
  3. Step 3: Cross multiply
    5,280.52x = 7,926.90 × 3,090.82
  4. Step 4: Simplify right side
    5,280.52x = 24,500,621.06
  5. Step 5: Solve for x
    x = 24,500,621.06/5,280.52
  6. Step 6: Final answer
    x = 4,639.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.