Home / 2,320.63-3,202.49-1,272.71

Finding the Fourth Proportional to 2,320.63, 3,202.49 and 1,272.71

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Solution

The fourth proportional to 2,320.63, 3,202.49 and 1,272.71 is: 1,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.63 : 3,202.49 = 1,272.71 : x
  2. Step 2: Convert to fraction form
    2,320.63/3,202.49 = 1,272.71/x
  3. Step 3: Cross multiply
    2,320.63x = 3,202.49 × 1,272.71
  4. Step 4: Simplify right side
    2,320.63x = 4,075,834.68
  5. Step 5: Solve for x
    x = 4,075,834.68/2,320.63
  6. Step 6: Final answer
    x = 1,756.35

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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.