Home / 5,130.90-7,080.63-2,773.03

Finding the Fourth Proportional to 5,130.90, 7,080.63 and 2,773.03

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Solution

The fourth proportional to 5,130.90, 7,080.63 and 2,773.03 is: 3,826.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.90 : 7,080.63 = 2,773.03 : x
  2. Step 2: Convert to fraction form
    5,130.90/7,080.63 = 2,773.03/x
  3. Step 3: Cross multiply
    5,130.90x = 7,080.63 × 2,773.03
  4. Step 4: Simplify right side
    5,130.90x = 19,634,797.86
  5. Step 5: Solve for x
    x = 19,634,797.86/5,130.90
  6. Step 6: Final answer
    x = 3,826.78

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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.