Home / 3,315.57-4,574.34-2,121.26

Finding the Fourth Proportional to 3,315.57, 4,574.34 and 2,121.26

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Solution

The fourth proportional to 3,315.57, 4,574.34 and 2,121.26 is: 2,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.57 : 4,574.34 = 2,121.26 : x
  2. Step 2: Convert to fraction form
    3,315.57/4,574.34 = 2,121.26/x
  3. Step 3: Cross multiply
    3,315.57x = 4,574.34 × 2,121.26
  4. Step 4: Simplify right side
    3,315.57x = 9,703,355.72
  5. Step 5: Solve for x
    x = 9,703,355.72/3,315.57
  6. Step 6: Final answer
    x = 2,926.60

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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.