Home / 1,290.03-1,932.44-1,030.47

Finding the Fourth Proportional to 1,290.03, 1,932.44 and 1,030.47

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Solution

The fourth proportional to 1,290.03, 1,932.44 and 1,030.47 is: 1,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290.03 : 1,932.44 = 1,030.47 : x
  2. Step 2: Convert to fraction form
    1,290.03/1,932.44 = 1,030.47/x
  3. Step 3: Cross multiply
    1,290.03x = 1,932.44 × 1,030.47
  4. Step 4: Simplify right side
    1,290.03x = 1,991,316.29
  5. Step 5: Solve for x
    x = 1,991,316.29/1,290.03
  6. Step 6: Final answer
    x = 1,543.62

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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.