Home / 5,525.50-7,610.40-4,779.49

Finding the Fourth Proportional to 5,525.50, 7,610.40 and 4,779.49

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Solution

The fourth proportional to 5,525.50, 7,610.40 and 4,779.49 is: 6,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,525.50 : 7,610.40 = 4,779.49 : x
  2. Step 2: Convert to fraction form
    5,525.50/7,610.40 = 4,779.49/x
  3. Step 3: Cross multiply
    5,525.50x = 7,610.40 × 4,779.49
  4. Step 4: Simplify right side
    5,525.50x = 36,373,830.70
  5. Step 5: Solve for x
    x = 36,373,830.70/5,525.50
  6. Step 6: Final answer
    x = 6,582.90

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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.