Home / 2,480.07-3,421.53-1,485.39

Finding the Fourth Proportional to 2,480.07, 3,421.53 and 1,485.39

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Solution

The fourth proportional to 2,480.07, 3,421.53 and 1,485.39 is: 2,049.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.07 : 3,421.53 = 1,485.39 : x
  2. Step 2: Convert to fraction form
    2,480.07/3,421.53 = 1,485.39/x
  3. Step 3: Cross multiply
    2,480.07x = 3,421.53 × 1,485.39
  4. Step 4: Simplify right side
    2,480.07x = 5,082,306.45
  5. Step 5: Solve for x
    x = 5,082,306.45/2,480.07
  6. Step 6: Final answer
    x = 2,049.26

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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.