Home / 1,373.32-2,047.73-1,220.68

Finding the Fourth Proportional to 1,373.32, 2,047.73 and 1,220.68

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Solution

The fourth proportional to 1,373.32, 2,047.73 and 1,220.68 is: 1,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373.32 : 2,047.73 = 1,220.68 : x
  2. Step 2: Convert to fraction form
    1,373.32/2,047.73 = 1,220.68/x
  3. Step 3: Cross multiply
    1,373.32x = 2,047.73 × 1,220.68
  4. Step 4: Simplify right side
    1,373.32x = 2,499,623.06
  5. Step 5: Solve for x
    x = 2,499,623.06/1,373.32
  6. Step 6: Final answer
    x = 1,820.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.