Home / 2,085.06-3,124.47-1,931.28

Finding the Fourth Proportional to 2,085.06, 3,124.47 and 1,931.28

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Solution

The fourth proportional to 2,085.06, 3,124.47 and 1,931.28 is: 2,894.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.06 : 3,124.47 = 1,931.28 : x
  2. Step 2: Convert to fraction form
    2,085.06/3,124.47 = 1,931.28/x
  3. Step 3: Cross multiply
    2,085.06x = 3,124.47 × 1,931.28
  4. Step 4: Simplify right side
    2,085.06x = 6,034,242.88
  5. Step 5: Solve for x
    x = 6,034,242.88/2,085.06
  6. Step 6: Final answer
    x = 2,894.04

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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.