Home / 7,785.99-10,744.90-4,428.18

Finding the Fourth Proportional to 7,785.99, 10,744.90 and 4,428.18

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Solution

The fourth proportional to 7,785.99, 10,744.90 and 4,428.18 is: 6,111.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.99 : 10,744.90 = 4,428.18 : x
  2. Step 2: Convert to fraction form
    7,785.99/10,744.90 = 4,428.18/x
  3. Step 3: Cross multiply
    7,785.99x = 10,744.90 × 4,428.18
  4. Step 4: Simplify right side
    7,785.99x = 47,580,380.50
  5. Step 5: Solve for x
    x = 47,580,380.50/7,785.99
  6. Step 6: Final answer
    x = 6,111.03

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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.