Home / 3,127.68-4,679.78-1,873.67

Finding the Fourth Proportional to 3,127.68, 4,679.78 and 1,873.67

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Solution

The fourth proportional to 3,127.68, 4,679.78 and 1,873.67 is: 2,803.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.68 : 4,679.78 = 1,873.67 : x
  2. Step 2: Convert to fraction form
    3,127.68/4,679.78 = 1,873.67/x
  3. Step 3: Cross multiply
    3,127.68x = 4,679.78 × 1,873.67
  4. Step 4: Simplify right side
    3,127.68x = 8,768,330.63
  5. Step 5: Solve for x
    x = 8,768,330.63/3,127.68
  6. Step 6: Final answer
    x = 2,803.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.