Home / 7,735.81-10,674.75-4,378.75

Finding the Fourth Proportional to 7,735.81, 10,674.75 and 4,378.75

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Solution

The fourth proportional to 7,735.81, 10,674.75 and 4,378.75 is: 6,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,735.81 : 10,674.75 = 4,378.75 : x
  2. Step 2: Convert to fraction form
    7,735.81/10,674.75 = 4,378.75/x
  3. Step 3: Cross multiply
    7,735.81x = 10,674.75 × 4,378.75
  4. Step 4: Simplify right side
    7,735.81x = 46,742,061.56
  5. Step 5: Solve for x
    x = 46,742,061.56/7,735.81
  6. Step 6: Final answer
    x = 6,042.30

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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.