Home / 1,722.65-2,583.45-490.16

Finding the Fourth Proportional to 1,722.65, 2,583.45 and 490.16

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Solution

The fourth proportional to 1,722.65, 2,583.45 and 490.16 is: 735.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.65 : 2,583.45 = 490.16 : x
  2. Step 2: Convert to fraction form
    1,722.65/2,583.45 = 490.16/x
  3. Step 3: Cross multiply
    1,722.65x = 2,583.45 × 490.16
  4. Step 4: Simplify right side
    1,722.65x = 1,266,303.85
  5. Step 5: Solve for x
    x = 1,266,303.85/1,722.65
  6. Step 6: Final answer
    x = 735.09

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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.