Home / 5,281.51-7,283.50-3,940.09

Finding the Fourth Proportional to 5,281.51, 7,283.50 and 3,940.09

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Solution

The fourth proportional to 5,281.51, 7,283.50 and 3,940.09 is: 5,433.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.51 : 7,283.50 = 3,940.09 : x
  2. Step 2: Convert to fraction form
    5,281.51/7,283.50 = 3,940.09/x
  3. Step 3: Cross multiply
    5,281.51x = 7,283.50 × 3,940.09
  4. Step 4: Simplify right side
    5,281.51x = 28,697,645.52
  5. Step 5: Solve for x
    x = 28,697,645.52/5,281.51
  6. Step 6: Final answer
    x = 5,433.61

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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.