Home / 5,512.60-8,268.90-5,145.40

Finding the Fourth Proportional to 5,512.60, 8,268.90 and 5,145.40

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Solution

The fourth proportional to 5,512.60, 8,268.90 and 5,145.40 is: 7,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,512.60 : 8,268.90 = 5,145.40 : x
  2. Step 2: Convert to fraction form
    5,512.60/8,268.90 = 5,145.40/x
  3. Step 3: Cross multiply
    5,512.60x = 8,268.90 × 5,145.40
  4. Step 4: Simplify right side
    5,512.60x = 42,546,798.06
  5. Step 5: Solve for x
    x = 42,546,798.06/5,512.60
  6. Step 6: Final answer
    x = 7,718.10

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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.