Home / 1,924.10-2,886.60-999.80

Finding the Fourth Proportional to 1,924.10, 2,886.60 and 999.80

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Solution

The fourth proportional to 1,924.10, 2,886.60 and 999.80 is: 1,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.10 : 2,886.60 = 999.80 : x
  2. Step 2: Convert to fraction form
    1,924.10/2,886.60 = 999.80/x
  3. Step 3: Cross multiply
    1,924.10x = 2,886.60 × 999.80
  4. Step 4: Simplify right side
    1,924.10x = 2,886,022.68
  5. Step 5: Solve for x
    x = 2,886,022.68/1,924.10
  6. Step 6: Final answer
    x = 1,499.93

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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.