Home / 2,918.24-4,371.60-2,405.60

Finding the Fourth Proportional to 2,918.24, 4,371.60 and 2,405.60

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Solution

The fourth proportional to 2,918.24, 4,371.60 and 2,405.60 is: 3,603.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.24 : 4,371.60 = 2,405.60 : x
  2. Step 2: Convert to fraction form
    2,918.24/4,371.60 = 2,405.60/x
  3. Step 3: Cross multiply
    2,918.24x = 4,371.60 × 2,405.60
  4. Step 4: Simplify right side
    2,918.24x = 10,516,320.96
  5. Step 5: Solve for x
    x = 10,516,320.96/2,918.24
  6. Step 6: Final answer
    x = 3,603.65

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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.