Home / 1,148.85-1,585.77-1,090.07

Finding the Fourth Proportional to 1,148.85, 1,585.77 and 1,090.07

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Solution

The fourth proportional to 1,148.85, 1,585.77 and 1,090.07 is: 1,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.85 : 1,585.77 = 1,090.07 : x
  2. Step 2: Convert to fraction form
    1,148.85/1,585.77 = 1,090.07/x
  3. Step 3: Cross multiply
    1,148.85x = 1,585.77 × 1,090.07
  4. Step 4: Simplify right side
    1,148.85x = 1,728,594.23
  5. Step 5: Solve for x
    x = 1,728,594.23/1,148.85
  6. Step 6: Final answer
    x = 1,504.63

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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.