Home / 1,556.93-2,335.38-386.90

Finding the Fourth Proportional to 1,556.93, 2,335.38 and 386.90

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Solution

The fourth proportional to 1,556.93, 2,335.38 and 386.90 is: 580.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.93 : 2,335.38 = 386.90 : x
  2. Step 2: Convert to fraction form
    1,556.93/2,335.38 = 386.90/x
  3. Step 3: Cross multiply
    1,556.93x = 2,335.38 × 386.90
  4. Step 4: Simplify right side
    1,556.93x = 903,564.36
  5. Step 5: Solve for x
    x = 903,564.36/1,556.93
  6. Step 6: Final answer
    x = 580.35

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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.