Home / 5,455.80-8,182.86-1,559.34

Finding the Fourth Proportional to 5,455.80, 8,182.86 and 1,559.34

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Solution

The fourth proportional to 5,455.80, 8,182.86 and 1,559.34 is: 2,338.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.80 : 8,182.86 = 1,559.34 : x
  2. Step 2: Convert to fraction form
    5,455.80/8,182.86 = 1,559.34/x
  3. Step 3: Cross multiply
    5,455.80x = 8,182.86 × 1,559.34
  4. Step 4: Simplify right side
    5,455.80x = 12,759,860.91
  5. Step 5: Solve for x
    x = 12,759,860.91/5,455.80
  6. Step 6: Final answer
    x = 2,338.77

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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.