Home / 2,717.40-4,075.74-1,157.11

Finding the Fourth Proportional to 2,717.40, 4,075.74 and 1,157.11

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Solution

The fourth proportional to 2,717.40, 4,075.74 and 1,157.11 is: 1,735.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.40 : 4,075.74 = 1,157.11 : x
  2. Step 2: Convert to fraction form
    2,717.40/4,075.74 = 1,157.11/x
  3. Step 3: Cross multiply
    2,717.40x = 4,075.74 × 1,157.11
  4. Step 4: Simplify right side
    2,717.40x = 4,716,079.51
  5. Step 5: Solve for x
    x = 4,716,079.51/2,717.40
  6. Step 6: Final answer
    x = 1,735.51

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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.