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Finding the Fourth Proportional to 3,603.51, 4,971.51 and 2,661.57

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Solution

The fourth proportional to 3,603.51, 4,971.51 and 2,661.57 is: 3,671.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.51 : 4,971.51 = 2,661.57 : x
  2. Step 2: Convert to fraction form
    3,603.51/4,971.51 = 2,661.57/x
  3. Step 3: Cross multiply
    3,603.51x = 4,971.51 × 2,661.57
  4. Step 4: Simplify right side
    3,603.51x = 13,232,021.87
  5. Step 5: Solve for x
    x = 13,232,021.87/3,603.51
  6. Step 6: Final answer
    x = 3,671.98

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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.