Home / 5,041.70-7,557.93-2,120.21

Finding the Fourth Proportional to 5,041.70, 7,557.93 and 2,120.21

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Solution

The fourth proportional to 5,041.70, 7,557.93 and 2,120.21 is: 3,178.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,041.70 : 7,557.93 = 2,120.21 : x
  2. Step 2: Convert to fraction form
    5,041.70/7,557.93 = 2,120.21/x
  3. Step 3: Cross multiply
    5,041.70x = 7,557.93 × 2,120.21
  4. Step 4: Simplify right side
    5,041.70x = 16,024,360.98
  5. Step 5: Solve for x
    x = 16,024,360.98/5,041.70
  6. Step 6: Final answer
    x = 3,178.37

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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.