Home / 2,343.75-3,518.09-1,421.61

Finding the Fourth Proportional to 2,343.75, 3,518.09 and 1,421.61

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Solution

The fourth proportional to 2,343.75, 3,518.09 and 1,421.61 is: 2,133.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.75 : 3,518.09 = 1,421.61 : x
  2. Step 2: Convert to fraction form
    2,343.75/3,518.09 = 1,421.61/x
  3. Step 3: Cross multiply
    2,343.75x = 3,518.09 × 1,421.61
  4. Step 4: Simplify right side
    2,343.75x = 5,001,344.82
  5. Step 5: Solve for x
    x = 5,001,344.82/2,343.75
  6. Step 6: Final answer
    x = 2,133.91

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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.