Home / 1,430.33-1,973.94-800.93

Finding the Fourth Proportional to 1,430.33, 1,973.94 and 800.93

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Solution

The fourth proportional to 1,430.33, 1,973.94 and 800.93 is: 1,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.33 : 1,973.94 = 800.93 : x
  2. Step 2: Convert to fraction form
    1,430.33/1,973.94 = 800.93/x
  3. Step 3: Cross multiply
    1,430.33x = 1,973.94 × 800.93
  4. Step 4: Simplify right side
    1,430.33x = 1,580,987.76
  5. Step 5: Solve for x
    x = 1,580,987.76/1,430.33
  6. Step 6: Final answer
    x = 1,105.33

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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.