Home / 2,021.89-2,787.03-1,852.40

Finding the Fourth Proportional to 2,021.89, 2,787.03 and 1,852.40

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Solution

The fourth proportional to 2,021.89, 2,787.03 and 1,852.40 is: 2,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.89 : 2,787.03 = 1,852.40 : x
  2. Step 2: Convert to fraction form
    2,021.89/2,787.03 = 1,852.40/x
  3. Step 3: Cross multiply
    2,021.89x = 2,787.03 × 1,852.40
  4. Step 4: Simplify right side
    2,021.89x = 5,162,671.17
  5. Step 5: Solve for x
    x = 5,162,671.17/2,021.89
  6. Step 6: Final answer
    x = 2,553.40

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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.