Home / 1,045.33-1,431.53-1,031.66

Finding the Fourth Proportional to 1,045.33, 1,431.53 and 1,031.66

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Solution

The fourth proportional to 1,045.33, 1,431.53 and 1,031.66 is: 1,412.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.33 : 1,431.53 = 1,031.66 : x
  2. Step 2: Convert to fraction form
    1,045.33/1,431.53 = 1,031.66/x
  3. Step 3: Cross multiply
    1,045.33x = 1,431.53 × 1,031.66
  4. Step 4: Simplify right side
    1,045.33x = 1,476,852.24
  5. Step 5: Solve for x
    x = 1,476,852.24/1,045.33
  6. Step 6: Final answer
    x = 1,412.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.