Home / 2,938.36-4,054.56-1,679.34

Finding the Fourth Proportional to 2,938.36, 4,054.56 and 1,679.34

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Solution

The fourth proportional to 2,938.36, 4,054.56 and 1,679.34 is: 2,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.36 : 4,054.56 = 1,679.34 : x
  2. Step 2: Convert to fraction form
    2,938.36/4,054.56 = 1,679.34/x
  3. Step 3: Cross multiply
    2,938.36x = 4,054.56 × 1,679.34
  4. Step 4: Simplify right side
    2,938.36x = 6,808,984.79
  5. Step 5: Solve for x
    x = 6,808,984.79/2,938.36
  6. Step 6: Final answer
    x = 2,317.27

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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.