Home / 4,085.29-5,642.36-2,756.69

Finding the Fourth Proportional to 4,085.29, 5,642.36 and 2,756.69

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Solution

The fourth proportional to 4,085.29, 5,642.36 and 2,756.69 is: 3,807.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.29 : 5,642.36 = 2,756.69 : x
  2. Step 2: Convert to fraction form
    4,085.29/5,642.36 = 2,756.69/x
  3. Step 3: Cross multiply
    4,085.29x = 5,642.36 × 2,756.69
  4. Step 4: Simplify right side
    4,085.29x = 15,554,237.39
  5. Step 5: Solve for x
    x = 15,554,237.39/4,085.29
  6. Step 6: Final answer
    x = 3,807.38

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1.5x scale

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.