Home / 5,406.48-7,458.75-3,815.44

Finding the Fourth Proportional to 5,406.48, 7,458.75 and 3,815.44

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Solution

The fourth proportional to 5,406.48, 7,458.75 and 3,815.44 is: 5,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.48 : 7,458.75 = 3,815.44 : x
  2. Step 2: Convert to fraction form
    5,406.48/7,458.75 = 3,815.44/x
  3. Step 3: Cross multiply
    5,406.48x = 7,458.75 × 3,815.44
  4. Step 4: Simplify right side
    5,406.48x = 28,458,394.45
  5. Step 5: Solve for x
    x = 28,458,394.45/5,406.48
  6. Step 6: Final answer
    x = 5,263.76

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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.