Home / 7,785.81-10,744.71-4,428.93

Finding the Fourth Proportional to 7,785.81, 10,744.71 and 4,428.93

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Solution

The fourth proportional to 7,785.81, 10,744.71 and 4,428.93 is: 6,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.81 : 10,744.71 = 4,428.93 : x
  2. Step 2: Convert to fraction form
    7,785.81/10,744.71 = 4,428.93/x
  3. Step 3: Cross multiply
    7,785.81x = 10,744.71 × 4,428.93
  4. Step 4: Simplify right side
    7,785.81x = 47,587,568.46
  5. Step 5: Solve for x
    x = 47,587,568.46/7,785.81
  6. Step 6: Final answer
    x = 6,112.09

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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.