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Finding the Fourth Proportional to 2,898.40, 4,000.98 and 1,719.58

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Solution

The fourth proportional to 2,898.40, 4,000.98 and 1,719.58 is: 2,373.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.40 : 4,000.98 = 1,719.58 : x
  2. Step 2: Convert to fraction form
    2,898.40/4,000.98 = 1,719.58/x
  3. Step 3: Cross multiply
    2,898.40x = 4,000.98 × 1,719.58
  4. Step 4: Simplify right side
    2,898.40x = 6,880,005.19
  5. Step 5: Solve for x
    x = 6,880,005.19/2,898.40
  6. Step 6: Final answer
    x = 2,373.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.