Home / 5,298.78-7,312.32-2,940.96

Finding the Fourth Proportional to 5,298.78, 7,312.32 and 2,940.96

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Solution

The fourth proportional to 5,298.78, 7,312.32 and 2,940.96 is: 4,058.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.78 : 7,312.32 = 2,940.96 : x
  2. Step 2: Convert to fraction form
    5,298.78/7,312.32 = 2,940.96/x
  3. Step 3: Cross multiply
    5,298.78x = 7,312.32 × 2,940.96
  4. Step 4: Simplify right side
    5,298.78x = 21,505,240.63
  5. Step 5: Solve for x
    x = 21,505,240.63/5,298.78
  6. Step 6: Final answer
    x = 4,058.53

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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.