Home / 1,668.24-2,302.20-1,047.60

Finding the Fourth Proportional to 1,668.24, 2,302.20 and 1,047.60

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Solution

The fourth proportional to 1,668.24, 2,302.20 and 1,047.60 is: 1,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.24 : 2,302.20 = 1,047.60 : x
  2. Step 2: Convert to fraction form
    1,668.24/2,302.20 = 1,047.60/x
  3. Step 3: Cross multiply
    1,668.24x = 2,302.20 × 1,047.60
  4. Step 4: Simplify right side
    1,668.24x = 2,411,784.72
  5. Step 5: Solve for x
    x = 2,411,784.72/1,668.24
  6. Step 6: Final answer
    x = 1,445.71

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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.