Home / 2,688.18-4,033.03-2,431.14

Finding the Fourth Proportional to 2,688.18, 4,033.03 and 2,431.14

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Solution

The fourth proportional to 2,688.18, 4,033.03 and 2,431.14 is: 3,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.18 : 4,033.03 = 2,431.14 : x
  2. Step 2: Convert to fraction form
    2,688.18/4,033.03 = 2,431.14/x
  3. Step 3: Cross multiply
    2,688.18x = 4,033.03 × 2,431.14
  4. Step 4: Simplify right side
    2,688.18x = 9,804,860.55
  5. Step 5: Solve for x
    x = 9,804,860.55/2,688.18
  6. Step 6: Final answer
    x = 3,647.40

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1.5x scale

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.