Home / 5,187.83-7,779.11-2,555.54

Finding the Fourth Proportional to 5,187.83, 7,779.11 and 2,555.54

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Solution

The fourth proportional to 5,187.83, 7,779.11 and 2,555.54 is: 3,832.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.83 : 7,779.11 = 2,555.54 : x
  2. Step 2: Convert to fraction form
    5,187.83/7,779.11 = 2,555.54/x
  3. Step 3: Cross multiply
    5,187.83x = 7,779.11 × 2,555.54
  4. Step 4: Simplify right side
    5,187.83x = 19,879,775.10
  5. Step 5: Solve for x
    x = 19,879,775.10/5,187.83
  6. Step 6: Final answer
    x = 3,832.01

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1.5x scale

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.