Home / 5,312.72-7,331.56-2,954.81

Finding the Fourth Proportional to 5,312.72, 7,331.56 and 2,954.81

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Solution

The fourth proportional to 5,312.72, 7,331.56 and 2,954.81 is: 4,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.72 : 7,331.56 = 2,954.81 : x
  2. Step 2: Convert to fraction form
    5,312.72/7,331.56 = 2,954.81/x
  3. Step 3: Cross multiply
    5,312.72x = 7,331.56 × 2,954.81
  4. Step 4: Simplify right side
    5,312.72x = 21,663,394.37
  5. Step 5: Solve for x
    x = 21,663,394.37/5,312.72
  6. Step 6: Final answer
    x = 4,077.64

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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.