Home / 3,280.23-4,526.78-1,788.21

Finding the Fourth Proportional to 3,280.23, 4,526.78 and 1,788.21

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Solution

The fourth proportional to 3,280.23, 4,526.78 and 1,788.21 is: 2,467.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.23 : 4,526.78 = 1,788.21 : x
  2. Step 2: Convert to fraction form
    3,280.23/4,526.78 = 1,788.21/x
  3. Step 3: Cross multiply
    3,280.23x = 4,526.78 × 1,788.21
  4. Step 4: Simplify right side
    3,280.23x = 8,094,824.32
  5. Step 5: Solve for x
    x = 8,094,824.32/3,280.23
  6. Step 6: Final answer
    x = 2,467.76

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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.