Home / 4,778.49-7,162.22-1,854.32

Finding the Fourth Proportional to 4,778.49, 7,162.22 and 1,854.32

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Solution

The fourth proportional to 4,778.49, 7,162.22 and 1,854.32 is: 2,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.49 : 7,162.22 = 1,854.32 : x
  2. Step 2: Convert to fraction form
    4,778.49/7,162.22 = 1,854.32/x
  3. Step 3: Cross multiply
    4,778.49x = 7,162.22 × 1,854.32
  4. Step 4: Simplify right side
    4,778.49x = 13,281,002.71
  5. Step 5: Solve for x
    x = 13,281,002.71/4,778.49
  6. Step 6: Final answer
    x = 2,779.33

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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.