Home / 3,312.55-4,571.61-1,820.76

Finding the Fourth Proportional to 3,312.55, 4,571.61 and 1,820.76

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Solution

The fourth proportional to 3,312.55, 4,571.61 and 1,820.76 is: 2,512.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.55 : 4,571.61 = 1,820.76 : x
  2. Step 2: Convert to fraction form
    3,312.55/4,571.61 = 1,820.76/x
  3. Step 3: Cross multiply
    3,312.55x = 4,571.61 × 1,820.76
  4. Step 4: Simplify right side
    3,312.55x = 8,323,786.10
  5. Step 5: Solve for x
    x = 8,323,786.10/3,312.55
  6. Step 6: Final answer
    x = 2,512.80

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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.