Home / 5,280.55-7,287.28-2,922.70

Finding the Fourth Proportional to 5,280.55, 7,287.28 and 2,922.70

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Solution

The fourth proportional to 5,280.55, 7,287.28 and 2,922.70 is: 4,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.55 : 7,287.28 = 2,922.70 : x
  2. Step 2: Convert to fraction form
    5,280.55/7,287.28 = 2,922.70/x
  3. Step 3: Cross multiply
    5,280.55x = 7,287.28 × 2,922.70
  4. Step 4: Simplify right side
    5,280.55x = 21,298,533.26
  5. Step 5: Solve for x
    x = 21,298,533.26/5,280.55
  6. Step 6: Final answer
    x = 4,033.39

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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.