Home / 1,281.61-1,918.77-1,035.64

Finding the Fourth Proportional to 1,281.61, 1,918.77 and 1,035.64

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Solution

The fourth proportional to 1,281.61, 1,918.77 and 1,035.64 is: 1,550.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.61 : 1,918.77 = 1,035.64 : x
  2. Step 2: Convert to fraction form
    1,281.61/1,918.77 = 1,035.64/x
  3. Step 3: Cross multiply
    1,281.61x = 1,918.77 × 1,035.64
  4. Step 4: Simplify right side
    1,281.61x = 1,987,154.96
  5. Step 5: Solve for x
    x = 1,987,154.96/1,281.61
  6. Step 6: Final answer
    x = 1,550.51

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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.