Home / 5,457.90-7,533.30-3,100.80

Finding the Fourth Proportional to 5,457.90, 7,533.30 and 3,100.80

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Solution

The fourth proportional to 5,457.90, 7,533.30 and 3,100.80 is: 4,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.90 : 7,533.30 = 3,100.80 : x
  2. Step 2: Convert to fraction form
    5,457.90/7,533.30 = 3,100.80/x
  3. Step 3: Cross multiply
    5,457.90x = 7,533.30 × 3,100.80
  4. Step 4: Simplify right side
    5,457.90x = 23,359,256.64
  5. Step 5: Solve for x
    x = 23,359,256.64/5,457.90
  6. Step 6: Final answer
    x = 4,279.90

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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.