Home / 2,880.60-3,975.02-1,621.59

Finding the Fourth Proportional to 2,880.60, 3,975.02 and 1,621.59

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Solution

The fourth proportional to 2,880.60, 3,975.02 and 1,621.59 is: 2,237.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.60 : 3,975.02 = 1,621.59 : x
  2. Step 2: Convert to fraction form
    2,880.60/3,975.02 = 1,621.59/x
  3. Step 3: Cross multiply
    2,880.60x = 3,975.02 × 1,621.59
  4. Step 4: Simplify right side
    2,880.60x = 6,445,824.70
  5. Step 5: Solve for x
    x = 6,445,824.70/2,880.60
  6. Step 6: Final answer
    x = 2,237.67

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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.