Home / 1,017.08-1,515.60-984.04

Finding the Fourth Proportional to 1,017.08, 1,515.60 and 984.04

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Solution

The fourth proportional to 1,017.08, 1,515.60 and 984.04 is: 1,466.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.08 : 1,515.60 = 984.04 : x
  2. Step 2: Convert to fraction form
    1,017.08/1,515.60 = 984.04/x
  3. Step 3: Cross multiply
    1,017.08x = 1,515.60 × 984.04
  4. Step 4: Simplify right side
    1,017.08x = 1,491,411.02
  5. Step 5: Solve for x
    x = 1,491,411.02/1,017.08
  6. Step 6: Final answer
    x = 1,466.37

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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.