Home / 1,130.08-1,556.40-1,049.44

Finding the Fourth Proportional to 1,130.08, 1,556.40 and 1,049.44

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Solution

The fourth proportional to 1,130.08, 1,556.40 and 1,049.44 is: 1,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.08 : 1,556.40 = 1,049.44 : x
  2. Step 2: Convert to fraction form
    1,130.08/1,556.40 = 1,049.44/x
  3. Step 3: Cross multiply
    1,130.08x = 1,556.40 × 1,049.44
  4. Step 4: Simplify right side
    1,130.08x = 1,633,348.42
  5. Step 5: Solve for x
    x = 1,633,348.42/1,130.08
  6. Step 6: Final answer
    x = 1,445.34

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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.