Home / 7,767.77-10,719.45-4,230.95

Finding the Fourth Proportional to 7,767.77, 10,719.45 and 4,230.95

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Solution

The fourth proportional to 7,767.77, 10,719.45 and 4,230.95 is: 5,838.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.77 : 10,719.45 = 4,230.95 : x
  2. Step 2: Convert to fraction form
    7,767.77/10,719.45 = 4,230.95/x
  3. Step 3: Cross multiply
    7,767.77x = 10,719.45 × 4,230.95
  4. Step 4: Simplify right side
    7,767.77x = 45,353,403.38
  5. Step 5: Solve for x
    x = 45,353,403.38/7,767.77
  6. Step 6: Final answer
    x = 5,838.67

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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.