Home / 6,862.14-10,293.21-1,931.78

Finding the Fourth Proportional to 6,862.14, 10,293.21 and 1,931.78

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Solution

The fourth proportional to 6,862.14, 10,293.21 and 1,931.78 is: 2,897.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.14 : 10,293.21 = 1,931.78 : x
  2. Step 2: Convert to fraction form
    6,862.14/10,293.21 = 1,931.78/x
  3. Step 3: Cross multiply
    6,862.14x = 10,293.21 × 1,931.78
  4. Step 4: Simplify right side
    6,862.14x = 19,884,203.93
  5. Step 5: Solve for x
    x = 19,884,203.93/6,862.14
  6. Step 6: Final answer
    x = 2,897.67

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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.