Home / 1,386.59-2,079.54-1,020.33

Finding the Fourth Proportional to 1,386.59, 2,079.54 and 1,020.33

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Solution

The fourth proportional to 1,386.59, 2,079.54 and 1,020.33 is: 1,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386.59 : 2,079.54 = 1,020.33 : x
  2. Step 2: Convert to fraction form
    1,386.59/2,079.54 = 1,020.33/x
  3. Step 3: Cross multiply
    1,386.59x = 2,079.54 × 1,020.33
  4. Step 4: Simplify right side
    1,386.59x = 2,121,817.05
  5. Step 5: Solve for x
    x = 2,121,817.05/1,386.59
  6. Step 6: Final answer
    x = 1,530.25

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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.