Home / 1,579.50-2,176.67-1,136.63

Finding the Fourth Proportional to 1,579.50, 2,176.67 and 1,136.63

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Solution

The fourth proportional to 1,579.50, 2,176.67 and 1,136.63 is: 1,566.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.50 : 2,176.67 = 1,136.63 : x
  2. Step 2: Convert to fraction form
    1,579.50/2,176.67 = 1,136.63/x
  3. Step 3: Cross multiply
    1,579.50x = 2,176.67 × 1,136.63
  4. Step 4: Simplify right side
    1,579.50x = 2,474,076.71
  5. Step 5: Solve for x
    x = 2,474,076.71/1,579.50
  6. Step 6: Final answer
    x = 1,566.37

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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.