Home / 3,172.18-4,756.60-1,856.38

Finding the Fourth Proportional to 3,172.18, 4,756.60 and 1,856.38

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Solution

The fourth proportional to 3,172.18, 4,756.60 and 1,856.38 is: 2,783.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.18 : 4,756.60 = 1,856.38 : x
  2. Step 2: Convert to fraction form
    3,172.18/4,756.60 = 1,856.38/x
  3. Step 3: Cross multiply
    3,172.18x = 4,756.60 × 1,856.38
  4. Step 4: Simplify right side
    3,172.18x = 8,830,057.11
  5. Step 5: Solve for x
    x = 8,830,057.11/3,172.18
  6. Step 6: Final answer
    x = 2,783.59

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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.