Home / 2,717.07-4,075.61-1,421.07

Finding the Fourth Proportional to 2,717.07, 4,075.61 and 1,421.07

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Solution

The fourth proportional to 2,717.07, 4,075.61 and 1,421.07 is: 2,131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.07 : 4,075.61 = 1,421.07 : x
  2. Step 2: Convert to fraction form
    2,717.07/4,075.61 = 1,421.07/x
  3. Step 3: Cross multiply
    2,717.07x = 4,075.61 × 1,421.07
  4. Step 4: Simplify right side
    2,717.07x = 5,791,720.00
  5. Step 5: Solve for x
    x = 5,791,720.00/2,717.07
  6. Step 6: Final answer
    x = 2,131.61

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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.