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Finding the Fourth Proportional to 3,021.70, 4,530.15 and 1,653.70

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Solution

The fourth proportional to 3,021.70, 4,530.15 and 1,653.70 is: 2,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.70 : 4,530.15 = 1,653.70 : x
  2. Step 2: Convert to fraction form
    3,021.70/4,530.15 = 1,653.70/x
  3. Step 3: Cross multiply
    3,021.70x = 4,530.15 × 1,653.70
  4. Step 4: Simplify right side
    3,021.70x = 7,491,509.06
  5. Step 5: Solve for x
    x = 7,491,509.06/3,021.70
  6. Step 6: Final answer
    x = 2,479.24

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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.