Home / 2,880.58-3,975.18-1,621.66

Finding the Fourth Proportional to 2,880.58, 3,975.18 and 1,621.66

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Solution

The fourth proportional to 2,880.58, 3,975.18 and 1,621.66 is: 2,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.58 : 3,975.18 = 1,621.66 : x
  2. Step 2: Convert to fraction form
    2,880.58/3,975.18 = 1,621.66/x
  3. Step 3: Cross multiply
    2,880.58x = 3,975.18 × 1,621.66
  4. Step 4: Simplify right side
    2,880.58x = 6,446,390.40
  5. Step 5: Solve for x
    x = 6,446,390.40/2,880.58
  6. Step 6: Final answer
    x = 2,237.88

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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.