Home / 1,621.03-2,429.98-524.65

Finding the Fourth Proportional to 1,621.03, 2,429.98 and 524.65

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Solution

The fourth proportional to 1,621.03, 2,429.98 and 524.65 is: 786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.03 : 2,429.98 = 524.65 : x
  2. Step 2: Convert to fraction form
    1,621.03/2,429.98 = 524.65/x
  3. Step 3: Cross multiply
    1,621.03x = 2,429.98 × 524.65
  4. Step 4: Simplify right side
    1,621.03x = 1,274,889.01
  5. Step 5: Solve for x
    x = 1,274,889.01/1,621.03
  6. Step 6: Final answer
    x = 786.47

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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.