Home / 5,290.08-7,209.30-5,270.64

Finding the Fourth Proportional to 5,290.08, 7,209.30 and 5,270.64

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Solution

The fourth proportional to 5,290.08, 7,209.30 and 5,270.64 is: 7,182.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.08 : 7,209.30 = 5,270.64 : x
  2. Step 2: Convert to fraction form
    5,290.08/7,209.30 = 5,270.64/x
  3. Step 3: Cross multiply
    5,290.08x = 7,209.30 × 5,270.64
  4. Step 4: Simplify right side
    5,290.08x = 37,997,624.95
  5. Step 5: Solve for x
    x = 37,997,624.95/5,290.08
  6. Step 6: Final answer
    x = 7,182.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.