Home / 2,528.08-3,487.80-1,644.64

Finding the Fourth Proportional to 2,528.08, 3,487.80 and 1,644.64

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Solution

The fourth proportional to 2,528.08, 3,487.80 and 1,644.64 is: 2,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.08 : 3,487.80 = 1,644.64 : x
  2. Step 2: Convert to fraction form
    2,528.08/3,487.80 = 1,644.64/x
  3. Step 3: Cross multiply
    2,528.08x = 3,487.80 × 1,644.64
  4. Step 4: Simplify right side
    2,528.08x = 5,736,175.39
  5. Step 5: Solve for x
    x = 5,736,175.39/2,528.08
  6. Step 6: Final answer
    x = 2,268.98

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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.