Home / 5,280.40-7,286.64-3,184.08

Finding the Fourth Proportional to 5,280.40, 7,286.64 and 3,184.08

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Solution

The fourth proportional to 5,280.40, 7,286.64 and 3,184.08 is: 4,393.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.40 : 7,286.64 = 3,184.08 : x
  2. Step 2: Convert to fraction form
    5,280.40/7,286.64 = 3,184.08/x
  3. Step 3: Cross multiply
    5,280.40x = 7,286.64 × 3,184.08
  4. Step 4: Simplify right side
    5,280.40x = 23,201,244.69
  5. Step 5: Solve for x
    x = 23,201,244.69/5,280.40
  6. Step 6: Final answer
    x = 4,393.84

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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.