Home / 2,229.47-3,078.08-1,433.16

Finding the Fourth Proportional to 2,229.47, 3,078.08 and 1,433.16

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Solution

The fourth proportional to 2,229.47, 3,078.08 and 1,433.16 is: 1,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.47 : 3,078.08 = 1,433.16 : x
  2. Step 2: Convert to fraction form
    2,229.47/3,078.08 = 1,433.16/x
  3. Step 3: Cross multiply
    2,229.47x = 3,078.08 × 1,433.16
  4. Step 4: Simplify right side
    2,229.47x = 4,411,373.97
  5. Step 5: Solve for x
    x = 4,411,373.97/2,229.47
  6. Step 6: Final answer
    x = 1,978.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.