Home / 7,785.72-10,744.55-4,428.68

Finding the Fourth Proportional to 7,785.72, 10,744.55 and 4,428.68

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Solution

The fourth proportional to 7,785.72, 10,744.55 and 4,428.68 is: 6,111.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.72 : 10,744.55 = 4,428.68 : x
  2. Step 2: Convert to fraction form
    7,785.72/10,744.55 = 4,428.68/x
  3. Step 3: Cross multiply
    7,785.72x = 10,744.55 × 4,428.68
  4. Step 4: Simplify right side
    7,785.72x = 47,584,114.44
  5. Step 5: Solve for x
    x = 47,584,114.44/7,785.72
  6. Step 6: Final answer
    x = 6,111.72

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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.