Home / 7,743.79-10,686.47-4,206.99

Finding the Fourth Proportional to 7,743.79, 10,686.47 and 4,206.99

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Solution

The fourth proportional to 7,743.79, 10,686.47 and 4,206.99 is: 5,805.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.79 : 10,686.47 = 4,206.99 : x
  2. Step 2: Convert to fraction form
    7,743.79/10,686.47 = 4,206.99/x
  3. Step 3: Cross multiply
    7,743.79x = 10,686.47 × 4,206.99
  4. Step 4: Simplify right side
    7,743.79x = 44,957,872.43
  5. Step 5: Solve for x
    x = 44,957,872.43/7,743.79
  6. Step 6: Final answer
    x = 5,805.67

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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.