Home / 5,313.48-7,331.74-2,955.56

Finding the Fourth Proportional to 5,313.48, 7,331.74 and 2,955.56

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Solution

The fourth proportional to 5,313.48, 7,331.74 and 2,955.56 is: 4,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.48 : 7,331.74 = 2,955.56 : x
  2. Step 2: Convert to fraction form
    5,313.48/7,331.74 = 2,955.56/x
  3. Step 3: Cross multiply
    5,313.48x = 7,331.74 × 2,955.56
  4. Step 4: Simplify right side
    5,313.48x = 21,669,397.47
  5. Step 5: Solve for x
    x = 21,669,397.47/5,313.48
  6. Step 6: Final answer
    x = 4,078.19

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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.