Home / 1,035.36-1,428.90-569.64

Finding the Fourth Proportional to 1,035.36, 1,428.90 and 569.64

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Solution

The fourth proportional to 1,035.36, 1,428.90 and 569.64 is: 786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.36 : 1,428.90 = 569.64 : x
  2. Step 2: Convert to fraction form
    1,035.36/1,428.90 = 569.64/x
  3. Step 3: Cross multiply
    1,035.36x = 1,428.90 × 569.64
  4. Step 4: Simplify right side
    1,035.36x = 813,958.60
  5. Step 5: Solve for x
    x = 813,958.60/1,035.36
  6. Step 6: Final answer
    x = 786.16

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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.