Home / 3,090.15-4,635.24-898.89

Finding the Fourth Proportional to 3,090.15, 4,635.24 and 898.89

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Solution

The fourth proportional to 3,090.15, 4,635.24 and 898.89 is: 1,348.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.15 : 4,635.24 = 898.89 : x
  2. Step 2: Convert to fraction form
    3,090.15/4,635.24 = 898.89/x
  3. Step 3: Cross multiply
    3,090.15x = 4,635.24 × 898.89
  4. Step 4: Simplify right side
    3,090.15x = 4,166,570.88
  5. Step 5: Solve for x
    x = 4,166,570.88/3,090.15
  6. Step 6: Final answer
    x = 1,348.34

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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.