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Finding the Fourth Proportional to 19,490, 29,235 and 4,898

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Solution

The fourth proportional to 19,490, 29,235 and 4,898 is: 7,347

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490 : 29,235 = 4,898 : x
  2. Step 2: Convert to fraction form
    19,490/29,235 = 4,898/x
  3. Step 3: Cross multiply
    19,490x = 29,235 × 4,898
  4. Step 4: Simplify right side
    19,490x = 143,193,030
  5. Step 5: Solve for x
    x = 143,193,030/19,490
  6. Step 6: Final answer
    x = 7,347

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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.