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Finding the Fourth Proportional to 4,931.22, 6,804.63 and 2,940.78

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Solution

The fourth proportional to 4,931.22, 6,804.63 and 2,940.78 is: 4,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.22 : 6,804.63 = 2,940.78 : x
  2. Step 2: Convert to fraction form
    4,931.22/6,804.63 = 2,940.78/x
  3. Step 3: Cross multiply
    4,931.22x = 6,804.63 × 2,940.78
  4. Step 4: Simplify right side
    4,931.22x = 20,010,919.81
  5. Step 5: Solve for x
    x = 20,010,919.81/4,931.22
  6. Step 6: Final answer
    x = 4,058.01

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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.