Home / 2,121.06-2,927.08-1,237.35

Finding the Fourth Proportional to 2,121.06, 2,927.08 and 1,237.35

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Solution

The fourth proportional to 2,121.06, 2,927.08 and 1,237.35 is: 1,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.06 : 2,927.08 = 1,237.35 : x
  2. Step 2: Convert to fraction form
    2,121.06/2,927.08 = 1,237.35/x
  3. Step 3: Cross multiply
    2,121.06x = 2,927.08 × 1,237.35
  4. Step 4: Simplify right side
    2,121.06x = 3,621,822.44
  5. Step 5: Solve for x
    x = 3,621,822.44/2,121.06
  6. Step 6: Final answer
    x = 1,707.55

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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.