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Finding the Fourth Proportional to 2,996.70, 4,495.05 and 2,802.30

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Solution

The fourth proportional to 2,996.70, 4,495.05 and 2,802.30 is: 4,203.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,996.70 : 4,495.05 = 2,802.30 : x
  2. Step 2: Convert to fraction form
    2,996.70/4,495.05 = 2,802.30/x
  3. Step 3: Cross multiply
    2,996.70x = 4,495.05 × 2,802.30
  4. Step 4: Simplify right side
    2,996.70x = 12,596,478.62
  5. Step 5: Solve for x
    x = 12,596,478.62/2,996.70
  6. Step 6: Final answer
    x = 4,203.45

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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.