Home / 5,457.85-8,190.02-2,170.06

Finding the Fourth Proportional to 5,457.85, 8,190.02 and 2,170.06

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Solution

The fourth proportional to 5,457.85, 8,190.02 and 2,170.06 is: 3,256.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.85 : 8,190.02 = 2,170.06 : x
  2. Step 2: Convert to fraction form
    5,457.85/8,190.02 = 2,170.06/x
  3. Step 3: Cross multiply
    5,457.85x = 8,190.02 × 2,170.06
  4. Step 4: Simplify right side
    5,457.85x = 17,772,834.80
  5. Step 5: Solve for x
    x = 17,772,834.80/5,457.85
  6. Step 6: Final answer
    x = 3,256.38

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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.