Home / 1,898.49-2,618.28-1,235.10

Finding the Fourth Proportional to 1,898.49, 2,618.28 and 1,235.10

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Solution

The fourth proportional to 1,898.49, 2,618.28 and 1,235.10 is: 1,703.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.49 : 2,618.28 = 1,235.10 : x
  2. Step 2: Convert to fraction form
    1,898.49/2,618.28 = 1,235.10/x
  3. Step 3: Cross multiply
    1,898.49x = 2,618.28 × 1,235.10
  4. Step 4: Simplify right side
    1,898.49x = 3,233,837.63
  5. Step 5: Solve for x
    x = 3,233,837.63/1,898.49
  6. Step 6: Final answer
    x = 1,703.37

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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.