Home / 3,802.85-5,247.88-2,124.29

Finding the Fourth Proportional to 3,802.85, 5,247.88 and 2,124.29

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Solution

The fourth proportional to 3,802.85, 5,247.88 and 2,124.29 is: 2,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.85 : 5,247.88 = 2,124.29 : x
  2. Step 2: Convert to fraction form
    3,802.85/5,247.88 = 2,124.29/x
  3. Step 3: Cross multiply
    3,802.85x = 5,247.88 × 2,124.29
  4. Step 4: Simplify right side
    3,802.85x = 11,147,992.77
  5. Step 5: Solve for x
    x = 11,147,992.77/3,802.85
  6. Step 6: Final answer
    x = 2,931.48

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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.