Home / 2,079-2,869.08-1,147.56

Finding the Fourth Proportional to 2,079, 2,869.08 and 1,147.56

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Solution

The fourth proportional to 2,079, 2,869.08 and 1,147.56 is: 1,583.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079 : 2,869.08 = 1,147.56 : x
  2. Step 2: Convert to fraction form
    2,079/2,869.08 = 1,147.56/x
  3. Step 3: Cross multiply
    2,079x = 2,869.08 × 1,147.56
  4. Step 4: Simplify right side
    2,079x = 3,292,441.44
  5. Step 5: Solve for x
    x = 3,292,441.44/2,079
  6. Step 6: Final answer
    x = 1,583.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.