Home / 3,089.84-4,633.34-1,239.40

Finding the Fourth Proportional to 3,089.84, 4,633.34 and 1,239.40

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Solution

The fourth proportional to 3,089.84, 4,633.34 and 1,239.40 is: 1,858.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.84 : 4,633.34 = 1,239.40 : x
  2. Step 2: Convert to fraction form
    3,089.84/4,633.34 = 1,239.40/x
  3. Step 3: Cross multiply
    3,089.84x = 4,633.34 × 1,239.40
  4. Step 4: Simplify right side
    3,089.84x = 5,742,561.60
  5. Step 5: Solve for x
    x = 5,742,561.60/3,089.84
  6. Step 6: Final answer
    x = 1,858.53

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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.