Home / 5,564.21-7,684.51-3,779.64

Finding the Fourth Proportional to 5,564.21, 7,684.51 and 3,779.64

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Solution

The fourth proportional to 5,564.21, 7,684.51 and 3,779.64 is: 5,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,564.21 : 7,684.51 = 3,779.64 : x
  2. Step 2: Convert to fraction form
    5,564.21/7,684.51 = 3,779.64/x
  3. Step 3: Cross multiply
    5,564.21x = 7,684.51 × 3,779.64
  4. Step 4: Simplify right side
    5,564.21x = 29,044,676.00
  5. Step 5: Solve for x
    x = 29,044,676.00/5,564.21
  6. Step 6: Final answer
    x = 5,219.91

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1.5x scale

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.