Home / 1,754.21-2,421.23-1,091.57

Finding the Fourth Proportional to 1,754.21, 2,421.23 and 1,091.57

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Solution

The fourth proportional to 1,754.21, 2,421.23 and 1,091.57 is: 1,506.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.21 : 2,421.23 = 1,091.57 : x
  2. Step 2: Convert to fraction form
    1,754.21/2,421.23 = 1,091.57/x
  3. Step 3: Cross multiply
    1,754.21x = 2,421.23 × 1,091.57
  4. Step 4: Simplify right side
    1,754.21x = 2,642,942.03
  5. Step 5: Solve for x
    x = 2,642,942.03/1,754.21
  6. Step 6: Final answer
    x = 1,506.63

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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.