Home / 1,559.40-2,351.67-1,386.60

Finding the Fourth Proportional to 1,559.40, 2,351.67 and 1,386.60

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Solution

The fourth proportional to 1,559.40, 2,351.67 and 1,386.60 is: 2,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.40 : 2,351.67 = 1,386.60 : x
  2. Step 2: Convert to fraction form
    1,559.40/2,351.67 = 1,386.60/x
  3. Step 3: Cross multiply
    1,559.40x = 2,351.67 × 1,386.60
  4. Step 4: Simplify right side
    1,559.40x = 3,260,825.62
  5. Step 5: Solve for x
    x = 3,260,825.62/1,559.40
  6. Step 6: Final answer
    x = 2,091.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.