Home / 5,280.25-7,271.94-4,387.99

Finding the Fourth Proportional to 5,280.25, 7,271.94 and 4,387.99

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Solution

The fourth proportional to 5,280.25, 7,271.94 and 4,387.99 is: 6,043.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.25 : 7,271.94 = 4,387.99 : x
  2. Step 2: Convert to fraction form
    5,280.25/7,271.94 = 4,387.99/x
  3. Step 3: Cross multiply
    5,280.25x = 7,271.94 × 4,387.99
  4. Step 4: Simplify right side
    5,280.25x = 31,909,198.28
  5. Step 5: Solve for x
    x = 31,909,198.28/5,280.25
  6. Step 6: Final answer
    x = 6,043.13

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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.