Home / 2,989.26-4,485.18-1,140.93

Finding the Fourth Proportional to 2,989.26, 4,485.18 and 1,140.93

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Solution

The fourth proportional to 2,989.26, 4,485.18 and 1,140.93 is: 1,711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.26 : 4,485.18 = 1,140.93 : x
  2. Step 2: Convert to fraction form
    2,989.26/4,485.18 = 1,140.93/x
  3. Step 3: Cross multiply
    2,989.26x = 4,485.18 × 1,140.93
  4. Step 4: Simplify right side
    2,989.26x = 5,117,276.42
  5. Step 5: Solve for x
    x = 5,117,276.42/2,989.26
  6. Step 6: Final answer
    x = 1,711.89

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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.