Home / 2,176.55-3,002.63-1,292.03

Finding the Fourth Proportional to 2,176.55, 3,002.63 and 1,292.03

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Solution

The fourth proportional to 2,176.55, 3,002.63 and 1,292.03 is: 1,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.55 : 3,002.63 = 1,292.03 : x
  2. Step 2: Convert to fraction form
    2,176.55/3,002.63 = 1,292.03/x
  3. Step 3: Cross multiply
    2,176.55x = 3,002.63 × 1,292.03
  4. Step 4: Simplify right side
    2,176.55x = 3,879,466.57
  5. Step 5: Solve for x
    x = 3,879,466.57/2,176.55
  6. Step 6: Final answer
    x = 1,782.40

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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.