Home / 1,875.46-2,815.98-1,055.38

Finding the Fourth Proportional to 1,875.46, 2,815.98 and 1,055.38

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Solution

The fourth proportional to 1,875.46, 2,815.98 and 1,055.38 is: 1,584.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.46 : 2,815.98 = 1,055.38 : x
  2. Step 2: Convert to fraction form
    1,875.46/2,815.98 = 1,055.38/x
  3. Step 3: Cross multiply
    1,875.46x = 2,815.98 × 1,055.38
  4. Step 4: Simplify right side
    1,875.46x = 2,971,928.97
  5. Step 5: Solve for x
    x = 2,971,928.97/1,875.46
  6. Step 6: Final answer
    x = 1,584.64

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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.