Home / 1,801.68-2,486.46-1,015.80

Finding the Fourth Proportional to 1,801.68, 2,486.46 and 1,015.80

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Solution

The fourth proportional to 1,801.68, 2,486.46 and 1,015.80 is: 1,401.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.68 : 2,486.46 = 1,015.80 : x
  2. Step 2: Convert to fraction form
    1,801.68/2,486.46 = 1,015.80/x
  3. Step 3: Cross multiply
    1,801.68x = 2,486.46 × 1,015.80
  4. Step 4: Simplify right side
    1,801.68x = 2,525,746.07
  5. Step 5: Solve for x
    x = 2,525,746.07/1,801.68
  6. Step 6: Final answer
    x = 1,401.88

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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.