Home / 3,221.23-4,445.37-1,894.99

Finding the Fourth Proportional to 3,221.23, 4,445.37 and 1,894.99

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Solution

The fourth proportional to 3,221.23, 4,445.37 and 1,894.99 is: 2,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.23 : 4,445.37 = 1,894.99 : x
  2. Step 2: Convert to fraction form
    3,221.23/4,445.37 = 1,894.99/x
  3. Step 3: Cross multiply
    3,221.23x = 4,445.37 × 1,894.99
  4. Step 4: Simplify right side
    3,221.23x = 8,423,931.70
  5. Step 5: Solve for x
    x = 8,423,931.70/3,221.23
  6. Step 6: Final answer
    x = 2,615.13

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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.