Home / 2,087.69-2,880.14-1,342.08

Finding the Fourth Proportional to 2,087.69, 2,880.14 and 1,342.08

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Solution

The fourth proportional to 2,087.69, 2,880.14 and 1,342.08 is: 1,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.69 : 2,880.14 = 1,342.08 : x
  2. Step 2: Convert to fraction form
    2,087.69/2,880.14 = 1,342.08/x
  3. Step 3: Cross multiply
    2,087.69x = 2,880.14 × 1,342.08
  4. Step 4: Simplify right side
    2,087.69x = 3,865,371.58
  5. Step 5: Solve for x
    x = 3,865,371.58/2,087.69
  6. Step 6: Final answer
    x = 1,851.51

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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.