Home / 3,319.26-4,581-1,921.74

Finding the Fourth Proportional to 3,319.26, 4,581 and 1,921.74

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Solution

The fourth proportional to 3,319.26, 4,581 and 1,921.74 is: 2,652.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.26 : 4,581 = 1,921.74 : x
  2. Step 2: Convert to fraction form
    3,319.26/4,581 = 1,921.74/x
  3. Step 3: Cross multiply
    3,319.26x = 4,581 × 1,921.74
  4. Step 4: Simplify right side
    3,319.26x = 8,803,490.94
  5. Step 5: Solve for x
    x = 8,803,490.94/3,319.26
  6. Step 6: Final answer
    x = 2,652.25

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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.