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Finding the Fourth Proportional to 3,603.82, 4,975.23 and 2,490.74

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Solution

The fourth proportional to 3,603.82, 4,975.23 and 2,490.74 is: 3,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.82 : 4,975.23 = 2,490.74 : x
  2. Step 2: Convert to fraction form
    3,603.82/4,975.23 = 2,490.74/x
  3. Step 3: Cross multiply
    3,603.82x = 4,975.23 × 2,490.74
  4. Step 4: Simplify right side
    3,603.82x = 12,392,016.81
  5. Step 5: Solve for x
    x = 12,392,016.81/3,603.82
  6. Step 6: Final answer
    x = 3,438.58

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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.