Home / 2,528.08-3,488.64-1,408.96

Finding the Fourth Proportional to 2,528.08, 3,488.64 and 1,408.96

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Solution

The fourth proportional to 2,528.08, 3,488.64 and 1,408.96 is: 1,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.08 : 3,488.64 = 1,408.96 : x
  2. Step 2: Convert to fraction form
    2,528.08/3,488.64 = 1,408.96/x
  3. Step 3: Cross multiply
    2,528.08x = 3,488.64 × 1,408.96
  4. Step 4: Simplify right side
    2,528.08x = 4,915,354.21
  5. Step 5: Solve for x
    x = 4,915,354.21/2,528.08
  6. Step 6: Final answer
    x = 1,944.30

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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.