Home / 4,501.91-6,750.70-2,128.01

Finding the Fourth Proportional to 4,501.91, 6,750.70 and 2,128.01

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Solution

The fourth proportional to 4,501.91, 6,750.70 and 2,128.01 is: 3,190.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,501.91 : 6,750.70 = 2,128.01 : x
  2. Step 2: Convert to fraction form
    4,501.91/6,750.70 = 2,128.01/x
  3. Step 3: Cross multiply
    4,501.91x = 6,750.70 × 2,128.01
  4. Step 4: Simplify right side
    4,501.91x = 14,365,557.11
  5. Step 5: Solve for x
    x = 14,365,557.11/4,501.91
  6. Step 6: Final answer
    x = 3,190.99

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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.