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Finding the Fourth Proportional to 2,480.52, 3,423 and 1,485.84

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Solution

The fourth proportional to 2,480.52, 3,423 and 1,485.84 is: 2,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.52 : 3,423 = 1,485.84 : x
  2. Step 2: Convert to fraction form
    2,480.52/3,423 = 1,485.84/x
  3. Step 3: Cross multiply
    2,480.52x = 3,423 × 1,485.84
  4. Step 4: Simplify right side
    2,480.52x = 5,086,030.32
  5. Step 5: Solve for x
    x = 5,086,030.32/2,480.52
  6. Step 6: Final answer
    x = 2,050.39

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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.