Home / 7,768.81-10,720.58-4,411.18

Finding the Fourth Proportional to 7,768.81, 10,720.58 and 4,411.18

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Solution

The fourth proportional to 7,768.81, 10,720.58 and 4,411.18 is: 6,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.81 : 10,720.58 = 4,411.18 : x
  2. Step 2: Convert to fraction form
    7,768.81/10,720.58 = 4,411.18/x
  3. Step 3: Cross multiply
    7,768.81x = 10,720.58 × 4,411.18
  4. Step 4: Simplify right side
    7,768.81x = 47,290,441.99
  5. Step 5: Solve for x
    x = 47,290,441.99/7,768.81
  6. Step 6: Final answer
    x = 6,087.22

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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.