Home / 2,554.80-3,832.20-2,117.40

Finding the Fourth Proportional to 2,554.80, 3,832.20 and 2,117.40

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Solution

The fourth proportional to 2,554.80, 3,832.20 and 2,117.40 is: 3,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.80 : 3,832.20 = 2,117.40 : x
  2. Step 2: Convert to fraction form
    2,554.80/3,832.20 = 2,117.40/x
  3. Step 3: Cross multiply
    2,554.80x = 3,832.20 × 2,117.40
  4. Step 4: Simplify right side
    2,554.80x = 8,114,300.28
  5. Step 5: Solve for x
    x = 8,114,300.28/2,554.80
  6. Step 6: Final answer
    x = 3,176.10

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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.