Home / 1,589.11-2,372.65-1,490.69

Finding the Fourth Proportional to 1,589.11, 2,372.65 and 1,490.69

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Solution

The fourth proportional to 1,589.11, 2,372.65 and 1,490.69 is: 2,225.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.11 : 2,372.65 = 1,490.69 : x
  2. Step 2: Convert to fraction form
    1,589.11/2,372.65 = 1,490.69/x
  3. Step 3: Cross multiply
    1,589.11x = 2,372.65 × 1,490.69
  4. Step 4: Simplify right side
    1,589.11x = 3,536,887.83
  5. Step 5: Solve for x
    x = 3,536,887.83/1,589.11
  6. Step 6: Final answer
    x = 2,225.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.