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Finding the Fourth Proportional to 2,196.46, 3,294.69 and 553

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Solution

The fourth proportional to 2,196.46, 3,294.69 and 553 is: 829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196.46 : 3,294.69 = 553 : x
  2. Step 2: Convert to fraction form
    2,196.46/3,294.69 = 553/x
  3. Step 3: Cross multiply
    2,196.46x = 3,294.69 × 553
  4. Step 4: Simplify right side
    2,196.46x = 1,821,963.57
  5. Step 5: Solve for x
    x = 1,821,963.57/2,196.46
  6. Step 6: Final answer
    x = 829.50

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.