Home / 1,556.58-2,335.89-1,431.45

Finding the Fourth Proportional to 1,556.58, 2,335.89 and 1,431.45

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Solution

The fourth proportional to 1,556.58, 2,335.89 and 1,431.45 is: 2,148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.58 : 2,335.89 = 1,431.45 : x
  2. Step 2: Convert to fraction form
    1,556.58/2,335.89 = 1,431.45/x
  3. Step 3: Cross multiply
    1,556.58x = 2,335.89 × 1,431.45
  4. Step 4: Simplify right side
    1,556.58x = 3,343,709.74
  5. Step 5: Solve for x
    x = 3,343,709.74/1,556.58
  6. Step 6: Final answer
    x = 2,148.11

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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.