Home / 3,453.07-4,763.81-2,405.74

Finding the Fourth Proportional to 3,453.07, 4,763.81 and 2,405.74

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Solution

The fourth proportional to 3,453.07, 4,763.81 and 2,405.74 is: 3,318.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.07 : 4,763.81 = 2,405.74 : x
  2. Step 2: Convert to fraction form
    3,453.07/4,763.81 = 2,405.74/x
  3. Step 3: Cross multiply
    3,453.07x = 4,763.81 × 2,405.74
  4. Step 4: Simplify right side
    3,453.07x = 11,460,488.27
  5. Step 5: Solve for x
    x = 11,460,488.27/3,453.07
  6. Step 6: Final answer
    x = 3,318.93

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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.