Home / 3,140.20-4,688.69-3,082.60

Finding the Fourth Proportional to 3,140.20, 4,688.69 and 3,082.60

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Solution

The fourth proportional to 3,140.20, 4,688.69 and 3,082.60 is: 4,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.20 : 4,688.69 = 3,082.60 : x
  2. Step 2: Convert to fraction form
    3,140.20/4,688.69 = 3,082.60/x
  3. Step 3: Cross multiply
    3,140.20x = 4,688.69 × 3,082.60
  4. Step 4: Simplify right side
    3,140.20x = 14,453,355.79
  5. Step 5: Solve for x
    x = 14,453,355.79/3,140.20
  6. Step 6: Final answer
    x = 4,602.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.