Home / 3,526.50-5,289.75-1,218

Finding the Fourth Proportional to 3,526.50, 5,289.75 and 1,218

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Solution

The fourth proportional to 3,526.50, 5,289.75 and 1,218 is: 1,827

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,526.50 : 5,289.75 = 1,218 : x
  2. Step 2: Convert to fraction form
    3,526.50/5,289.75 = 1,218/x
  3. Step 3: Cross multiply
    3,526.50x = 5,289.75 × 1,218
  4. Step 4: Simplify right side
    3,526.50x = 6,442,915.50
  5. Step 5: Solve for x
    x = 6,442,915.50/3,526.50
  6. Step 6: Final answer
    x = 1,827

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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.