Home / 4,778.48-7,162.22-1,854.32

Finding the Fourth Proportional to 4,778.48, 7,162.22 and 1,854.32

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Solution

The fourth proportional to 4,778.48, 7,162.22 and 1,854.32 is: 2,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.48 : 7,162.22 = 1,854.32 : x
  2. Step 2: Convert to fraction form
    4,778.48/7,162.22 = 1,854.32/x
  3. Step 3: Cross multiply
    4,778.48x = 7,162.22 × 1,854.32
  4. Step 4: Simplify right side
    4,778.48x = 13,281,016.62
  5. Step 5: Solve for x
    x = 13,281,016.62/4,778.48
  6. Step 6: Final answer
    x = 2,779.34

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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.