Home / 1,858.50-2,565.06-1,072.38

Finding the Fourth Proportional to 1,858.50, 2,565.06 and 1,072.38

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Solution

The fourth proportional to 1,858.50, 2,565.06 and 1,072.38 is: 1,480.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.50 : 2,565.06 = 1,072.38 : x
  2. Step 2: Convert to fraction form
    1,858.50/2,565.06 = 1,072.38/x
  3. Step 3: Cross multiply
    1,858.50x = 2,565.06 × 1,072.38
  4. Step 4: Simplify right side
    1,858.50x = 2,750,719.04
  5. Step 5: Solve for x
    x = 2,750,719.04/1,858.50
  6. Step 6: Final answer
    x = 1,480.07

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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.