Home / 3,720.13-5,582.35-1,668.13

Finding the Fourth Proportional to 3,720.13, 5,582.35 and 1,668.13

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Solution

The fourth proportional to 3,720.13, 5,582.35 and 1,668.13 is: 2,503.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.13 : 5,582.35 = 1,668.13 : x
  2. Step 2: Convert to fraction form
    3,720.13/5,582.35 = 1,668.13/x
  3. Step 3: Cross multiply
    3,720.13x = 5,582.35 × 1,668.13
  4. Step 4: Simplify right side
    3,720.13x = 9,312,085.51
  5. Step 5: Solve for x
    x = 9,312,085.51/3,720.13
  6. Step 6: Final answer
    x = 2,503.16

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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.