Home / 5,378.64-8,066.52-2,090.76

Finding the Fourth Proportional to 5,378.64, 8,066.52 and 2,090.76

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Solution

The fourth proportional to 5,378.64, 8,066.52 and 2,090.76 is: 3,135.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.64 : 8,066.52 = 2,090.76 : x
  2. Step 2: Convert to fraction form
    5,378.64/8,066.52 = 2,090.76/x
  3. Step 3: Cross multiply
    5,378.64x = 8,066.52 × 2,090.76
  4. Step 4: Simplify right side
    5,378.64x = 16,865,157.36
  5. Step 5: Solve for x
    x = 16,865,157.36/5,378.64
  6. Step 6: Final answer
    x = 3,135.58

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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.