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Finding the Fourth Proportional to 2,913.90, 4,368.01 and 1,612.63

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Solution

The fourth proportional to 2,913.90, 4,368.01 and 1,612.63 is: 2,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.90 : 4,368.01 = 1,612.63 : x
  2. Step 2: Convert to fraction form
    2,913.90/4,368.01 = 1,612.63/x
  3. Step 3: Cross multiply
    2,913.90x = 4,368.01 × 1,612.63
  4. Step 4: Simplify right side
    2,913.90x = 7,043,983.97
  5. Step 5: Solve for x
    x = 7,043,983.97/2,913.90
  6. Step 6: Final answer
    x = 2,417.37

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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.