Home / 3,090.34-4,631.19-1,442.80

Finding the Fourth Proportional to 3,090.34, 4,631.19 and 1,442.80

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Solution

The fourth proportional to 3,090.34, 4,631.19 and 1,442.80 is: 2,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.34 : 4,631.19 = 1,442.80 : x
  2. Step 2: Convert to fraction form
    3,090.34/4,631.19 = 1,442.80/x
  3. Step 3: Cross multiply
    3,090.34x = 4,631.19 × 1,442.80
  4. Step 4: Simplify right side
    3,090.34x = 6,681,880.93
  5. Step 5: Solve for x
    x = 6,681,880.93/3,090.34
  6. Step 6: Final answer
    x = 2,162.18

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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.