Home / 1,738.46-2,607.70-1,390.93

Finding the Fourth Proportional to 1,738.46, 2,607.70 and 1,390.93

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Solution

The fourth proportional to 1,738.46, 2,607.70 and 1,390.93 is: 2,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.46 : 2,607.70 = 1,390.93 : x
  2. Step 2: Convert to fraction form
    1,738.46/2,607.70 = 1,390.93/x
  3. Step 3: Cross multiply
    1,738.46x = 2,607.70 × 1,390.93
  4. Step 4: Simplify right side
    1,738.46x = 3,627,118.16
  5. Step 5: Solve for x
    x = 3,627,118.16/1,738.46
  6. Step 6: Final answer
    x = 2,086.40

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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.