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Finding the Fourth Proportional to 3,069.64, 4,603.74 and 2,921.32

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Solution

The fourth proportional to 3,069.64, 4,603.74 and 2,921.32 is: 4,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.64 : 4,603.74 = 2,921.32 : x
  2. Step 2: Convert to fraction form
    3,069.64/4,603.74 = 2,921.32/x
  3. Step 3: Cross multiply
    3,069.64x = 4,603.74 × 2,921.32
  4. Step 4: Simplify right side
    3,069.64x = 13,448,997.74
  5. Step 5: Solve for x
    x = 13,448,997.74/3,069.64
  6. Step 6: Final answer
    x = 4,381.29

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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.