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Finding the Fourth Proportional to 2,946.04, 4,419.64 and 998.40

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Solution

The fourth proportional to 2,946.04, 4,419.64 and 998.40 is: 1,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.04 : 4,419.64 = 998.40 : x
  2. Step 2: Convert to fraction form
    2,946.04/4,419.64 = 998.40/x
  3. Step 3: Cross multiply
    2,946.04x = 4,419.64 × 998.40
  4. Step 4: Simplify right side
    2,946.04x = 4,412,568.58
  5. Step 5: Solve for x
    x = 4,412,568.58/2,946.04
  6. Step 6: Final answer
    x = 1,497.80

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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.