Home / 4,807.19-6,639.81-3,478.79

Finding the Fourth Proportional to 4,807.19, 6,639.81 and 3,478.79

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Solution

The fourth proportional to 4,807.19, 6,639.81 and 3,478.79 is: 4,804.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.19 : 6,639.81 = 3,478.79 : x
  2. Step 2: Convert to fraction form
    4,807.19/6,639.81 = 3,478.79/x
  3. Step 3: Cross multiply
    4,807.19x = 6,639.81 × 3,478.79
  4. Step 4: Simplify right side
    4,807.19x = 23,098,504.63
  5. Step 5: Solve for x
    x = 23,098,504.63/4,807.19
  6. Step 6: Final answer
    x = 4,804.99

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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.