Home / 2,918.17-4,376.50-1,069.45

Finding the Fourth Proportional to 2,918.17, 4,376.50 and 1,069.45

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Solution

The fourth proportional to 2,918.17, 4,376.50 and 1,069.45 is: 1,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.17 : 4,376.50 = 1,069.45 : x
  2. Step 2: Convert to fraction form
    2,918.17/4,376.50 = 1,069.45/x
  3. Step 3: Cross multiply
    2,918.17x = 4,376.50 × 1,069.45
  4. Step 4: Simplify right side
    2,918.17x = 4,680,447.93
  5. Step 5: Solve for x
    x = 4,680,447.93/2,918.17
  6. Step 6: Final answer
    x = 1,603.90

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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.