Home / 3,021.59-4,169.87-1,695.40

Finding the Fourth Proportional to 3,021.59, 4,169.87 and 1,695.40

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Solution

The fourth proportional to 3,021.59, 4,169.87 and 1,695.40 is: 2,339.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.59 : 4,169.87 = 1,695.40 : x
  2. Step 2: Convert to fraction form
    3,021.59/4,169.87 = 1,695.40/x
  3. Step 3: Cross multiply
    3,021.59x = 4,169.87 × 1,695.40
  4. Step 4: Simplify right side
    3,021.59x = 7,069,576.75
  5. Step 5: Solve for x
    x = 7,069,576.75/3,021.59
  6. Step 6: Final answer
    x = 2,339.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.