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Finding the Fourth Proportional to 3,382.84, 5,070 and 1,533.40

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Solution

The fourth proportional to 3,382.84, 5,070 and 1,533.40 is: 2,298.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.84 : 5,070 = 1,533.40 : x
  2. Step 2: Convert to fraction form
    3,382.84/5,070 = 1,533.40/x
  3. Step 3: Cross multiply
    3,382.84x = 5,070 × 1,533.40
  4. Step 4: Simplify right side
    3,382.84x = 7,774,338
  5. Step 5: Solve for x
    x = 7,774,338/3,382.84
  6. Step 6: Final answer
    x = 2,298.17

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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.