Home / 1,039.28-1,434.08-573.60

Finding the Fourth Proportional to 1,039.28, 1,434.08 and 573.60

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Solution

The fourth proportional to 1,039.28, 1,434.08 and 573.60 is: 791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.28 : 1,434.08 = 573.60 : x
  2. Step 2: Convert to fraction form
    1,039.28/1,434.08 = 573.60/x
  3. Step 3: Cross multiply
    1,039.28x = 1,434.08 × 573.60
  4. Step 4: Simplify right side
    1,039.28x = 822,588.29
  5. Step 5: Solve for x
    x = 822,588.29/1,039.28
  6. Step 6: Final answer
    x = 791.50

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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.