Home / 2,421.55-3,627.33-1,763.02

Finding the Fourth Proportional to 2,421.55, 3,627.33 and 1,763.02

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Solution

The fourth proportional to 2,421.55, 3,627.33 and 1,763.02 is: 2,640.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.55 : 3,627.33 = 1,763.02 : x
  2. Step 2: Convert to fraction form
    2,421.55/3,627.33 = 1,763.02/x
  3. Step 3: Cross multiply
    2,421.55x = 3,627.33 × 1,763.02
  4. Step 4: Simplify right side
    2,421.55x = 6,395,055.34
  5. Step 5: Solve for x
    x = 6,395,055.34/2,421.55
  6. Step 6: Final answer
    x = 2,640.89

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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.