Home / 1,877.97-2,815.35-1,148.07

Finding the Fourth Proportional to 1,877.97, 2,815.35 and 1,148.07

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Solution

The fourth proportional to 1,877.97, 2,815.35 and 1,148.07 is: 1,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.97 : 2,815.35 = 1,148.07 : x
  2. Step 2: Convert to fraction form
    1,877.97/2,815.35 = 1,148.07/x
  3. Step 3: Cross multiply
    1,877.97x = 2,815.35 × 1,148.07
  4. Step 4: Simplify right side
    1,877.97x = 3,232,218.87
  5. Step 5: Solve for x
    x = 3,232,218.87/1,877.97
  6. Step 6: Final answer
    x = 1,721.12

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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.