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Finding the Fourth Proportional to 3,470.64, 4,800.16 and 3,412.32

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Solution

The fourth proportional to 3,470.64, 4,800.16 and 3,412.32 is: 4,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.64 : 4,800.16 = 3,412.32 : x
  2. Step 2: Convert to fraction form
    3,470.64/4,800.16 = 3,412.32/x
  3. Step 3: Cross multiply
    3,470.64x = 4,800.16 × 3,412.32
  4. Step 4: Simplify right side
    3,470.64x = 16,379,681.97
  5. Step 5: Solve for x
    x = 16,379,681.97/3,470.64
  6. Step 6: Final answer
    x = 4,719.50

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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.