Home / 2,164.21-2,988.05-1,456.85

Finding the Fourth Proportional to 2,164.21, 2,988.05 and 1,456.85

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Solution

The fourth proportional to 2,164.21, 2,988.05 and 1,456.85 is: 2,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.21 : 2,988.05 = 1,456.85 : x
  2. Step 2: Convert to fraction form
    2,164.21/2,988.05 = 1,456.85/x
  3. Step 3: Cross multiply
    2,164.21x = 2,988.05 × 1,456.85
  4. Step 4: Simplify right side
    2,164.21x = 4,353,133.36
  5. Step 5: Solve for x
    x = 4,353,133.36/2,164.21
  6. Step 6: Final answer
    x = 2,011.42

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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.