Home / 3,021.61-4,170.01-1,695.40

Finding the Fourth Proportional to 3,021.61, 4,170.01 and 1,695.40

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Solution

The fourth proportional to 3,021.61, 4,170.01 and 1,695.40 is: 2,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.61 : 4,170.01 = 1,695.40 : x
  2. Step 2: Convert to fraction form
    3,021.61/4,170.01 = 1,695.40/x
  3. Step 3: Cross multiply
    3,021.61x = 4,170.01 × 1,695.40
  4. Step 4: Simplify right side
    3,021.61x = 7,069,834.95
  5. Step 5: Solve for x
    x = 7,069,834.95/3,021.61
  6. Step 6: Final answer
    x = 2,339.76

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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.