Home / 2,490.99-3,437.76-1,372.14

Finding the Fourth Proportional to 2,490.99, 3,437.76 and 1,372.14

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Solution

The fourth proportional to 2,490.99, 3,437.76 and 1,372.14 is: 1,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.99 : 3,437.76 = 1,372.14 : x
  2. Step 2: Convert to fraction form
    2,490.99/3,437.76 = 1,372.14/x
  3. Step 3: Cross multiply
    2,490.99x = 3,437.76 × 1,372.14
  4. Step 4: Simplify right side
    2,490.99x = 4,717,088.01
  5. Step 5: Solve for x
    x = 4,717,088.01/2,490.99
  6. Step 6: Final answer
    x = 1,893.66

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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.