Home / 4,288.28-6,422.34-2,090.12

Finding the Fourth Proportional to 4,288.28, 6,422.34 and 2,090.12

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Solution

The fourth proportional to 4,288.28, 6,422.34 and 2,090.12 is: 3,130.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.28 : 6,422.34 = 2,090.12 : x
  2. Step 2: Convert to fraction form
    4,288.28/6,422.34 = 2,090.12/x
  3. Step 3: Cross multiply
    4,288.28x = 6,422.34 × 2,090.12
  4. Step 4: Simplify right side
    4,288.28x = 13,423,461.28
  5. Step 5: Solve for x
    x = 13,423,461.28/4,288.28
  6. Step 6: Final answer
    x = 3,130.27

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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.