Home / 3,087.79-4,631.68-1,445.49

Finding the Fourth Proportional to 3,087.79, 4,631.68 and 1,445.49

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Solution

The fourth proportional to 3,087.79, 4,631.68 and 1,445.49 is: 2,168.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.79 : 4,631.68 = 1,445.49 : x
  2. Step 2: Convert to fraction form
    3,087.79/4,631.68 = 1,445.49/x
  3. Step 3: Cross multiply
    3,087.79x = 4,631.68 × 1,445.49
  4. Step 4: Simplify right side
    3,087.79x = 6,695,048.93
  5. Step 5: Solve for x
    x = 6,695,048.93/3,087.79
  6. Step 6: Final answer
    x = 2,168.24

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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.