Home / 1,890.48-2,609.13-1,575.30

Finding the Fourth Proportional to 1,890.48, 2,609.13 and 1,575.30

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Solution

The fourth proportional to 1,890.48, 2,609.13 and 1,575.30 is: 2,174.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.48 : 2,609.13 = 1,575.30 : x
  2. Step 2: Convert to fraction form
    1,890.48/2,609.13 = 1,575.30/x
  3. Step 3: Cross multiply
    1,890.48x = 2,609.13 × 1,575.30
  4. Step 4: Simplify right side
    1,890.48x = 4,110,162.49
  5. Step 5: Solve for x
    x = 4,110,162.49/1,890.48
  6. Step 6: Final answer
    x = 2,174.14

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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.