Home / 4,412.68-6,621.65-1,639.60

Finding the Fourth Proportional to 4,412.68, 6,621.65 and 1,639.60

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Solution

The fourth proportional to 4,412.68, 6,621.65 and 1,639.60 is: 2,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,412.68 : 6,621.65 = 1,639.60 : x
  2. Step 2: Convert to fraction form
    4,412.68/6,621.65 = 1,639.60/x
  3. Step 3: Cross multiply
    4,412.68x = 6,621.65 × 1,639.60
  4. Step 4: Simplify right side
    4,412.68x = 10,856,857.34
  5. Step 5: Solve for x
    x = 10,856,857.34/4,412.68
  6. Step 6: Final answer
    x = 2,460.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.