Home / 2,085.17-3,127.75-1,472.12

Finding the Fourth Proportional to 2,085.17, 3,127.75 and 1,472.12

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Solution

The fourth proportional to 2,085.17, 3,127.75 and 1,472.12 is: 2,208.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.17 : 3,127.75 = 1,472.12 : x
  2. Step 2: Convert to fraction form
    2,085.17/3,127.75 = 1,472.12/x
  3. Step 3: Cross multiply
    2,085.17x = 3,127.75 × 1,472.12
  4. Step 4: Simplify right side
    2,085.17x = 4,604,439.54
  5. Step 5: Solve for x
    x = 4,604,439.54/2,085.17
  6. Step 6: Final answer
    x = 2,208.19

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1.5x scale

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.