Home / 2,284.79-3,153.01-1,290.13

Finding the Fourth Proportional to 2,284.79, 3,153.01 and 1,290.13

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Solution

The fourth proportional to 2,284.79, 3,153.01 and 1,290.13 is: 1,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.79 : 3,153.01 = 1,290.13 : x
  2. Step 2: Convert to fraction form
    2,284.79/3,153.01 = 1,290.13/x
  3. Step 3: Cross multiply
    2,284.79x = 3,153.01 × 1,290.13
  4. Step 4: Simplify right side
    2,284.79x = 4,067,807.68
  5. Step 5: Solve for x
    x = 4,067,807.68/2,284.79
  6. Step 6: Final answer
    x = 1,780.38

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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.