Home / 1,907.18-2,861.58-609.02

Finding the Fourth Proportional to 1,907.18, 2,861.58 and 609.02

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Solution

The fourth proportional to 1,907.18, 2,861.58 and 609.02 is: 913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.18 : 2,861.58 = 609.02 : x
  2. Step 2: Convert to fraction form
    1,907.18/2,861.58 = 609.02/x
  3. Step 3: Cross multiply
    1,907.18x = 2,861.58 × 609.02
  4. Step 4: Simplify right side
    1,907.18x = 1,742,759.45
  5. Step 5: Solve for x
    x = 1,742,759.45/1,907.18
  6. Step 6: Final answer
    x = 913.79

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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.