Home / 5,733.12-7,911.60-3,215.40

Finding the Fourth Proportional to 5,733.12, 7,911.60 and 3,215.40

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Solution

The fourth proportional to 5,733.12, 7,911.60 and 3,215.40 is: 4,437.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,733.12 : 7,911.60 = 3,215.40 : x
  2. Step 2: Convert to fraction form
    5,733.12/7,911.60 = 3,215.40/x
  3. Step 3: Cross multiply
    5,733.12x = 7,911.60 × 3,215.40
  4. Step 4: Simplify right side
    5,733.12x = 25,438,958.64
  5. Step 5: Solve for x
    x = 25,438,958.64/5,733.12
  6. Step 6: Final answer
    x = 4,437.19

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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.