Home / 3,140.60-4,711.40-1,266.53

Finding the Fourth Proportional to 3,140.60, 4,711.40 and 1,266.53

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Solution

The fourth proportional to 3,140.60, 4,711.40 and 1,266.53 is: 1,899.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.60 : 4,711.40 = 1,266.53 : x
  2. Step 2: Convert to fraction form
    3,140.60/4,711.40 = 1,266.53/x
  3. Step 3: Cross multiply
    3,140.60x = 4,711.40 × 1,266.53
  4. Step 4: Simplify right side
    3,140.60x = 5,967,099.55
  5. Step 5: Solve for x
    x = 5,967,099.55/3,140.60
  6. Step 6: Final answer
    x = 1,899.99

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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.