Home / 3,205.95-4,808.32-1,125.47

Finding the Fourth Proportional to 3,205.95, 4,808.32 and 1,125.47

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Solution

The fourth proportional to 3,205.95, 4,808.32 and 1,125.47 is: 1,687.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.95 : 4,808.32 = 1,125.47 : x
  2. Step 2: Convert to fraction form
    3,205.95/4,808.32 = 1,125.47/x
  3. Step 3: Cross multiply
    3,205.95x = 4,808.32 × 1,125.47
  4. Step 4: Simplify right side
    3,205.95x = 5,411,593.06
  5. Step 5: Solve for x
    x = 5,411,593.06/3,205.95
  6. Step 6: Final answer
    x = 1,687.98

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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.