Home / 1,554.47-2,144.32-1,081.62

Finding the Fourth Proportional to 1,554.47, 2,144.32 and 1,081.62

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Solution

The fourth proportional to 1,554.47, 2,144.32 and 1,081.62 is: 1,492.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.47 : 2,144.32 = 1,081.62 : x
  2. Step 2: Convert to fraction form
    1,554.47/2,144.32 = 1,081.62/x
  3. Step 3: Cross multiply
    1,554.47x = 2,144.32 × 1,081.62
  4. Step 4: Simplify right side
    1,554.47x = 2,319,340.75
  5. Step 5: Solve for x
    x = 2,319,340.75/1,554.47
  6. Step 6: Final answer
    x = 1,492.04

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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.