Home / 5,460.90-8,190.72-1,512.45

Finding the Fourth Proportional to 5,460.90, 8,190.72 and 1,512.45

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Solution

The fourth proportional to 5,460.90, 8,190.72 and 1,512.45 is: 2,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,460.90 : 8,190.72 = 1,512.45 : x
  2. Step 2: Convert to fraction form
    5,460.90/8,190.72 = 1,512.45/x
  3. Step 3: Cross multiply
    5,460.90x = 8,190.72 × 1,512.45
  4. Step 4: Simplify right side
    5,460.90x = 12,388,054.46
  5. Step 5: Solve for x
    x = 12,388,054.46/5,460.90
  6. Step 6: Final answer
    x = 2,268.50

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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.