Home / 3,205.58-4,808.40-1,125.64

Finding the Fourth Proportional to 3,205.58, 4,808.40 and 1,125.64

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Solution

The fourth proportional to 3,205.58, 4,808.40 and 1,125.64 is: 1,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.58 : 4,808.40 = 1,125.64 : x
  2. Step 2: Convert to fraction form
    3,205.58/4,808.40 = 1,125.64/x
  3. Step 3: Cross multiply
    3,205.58x = 4,808.40 × 1,125.64
  4. Step 4: Simplify right side
    3,205.58x = 5,412,530.19
  5. Step 5: Solve for x
    x = 5,412,530.19/3,205.58
  6. Step 6: Final answer
    x = 1,688.47

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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.