Home / 5,453.90-8,190.45-5,281.10

Finding the Fourth Proportional to 5,453.90, 8,190.45 and 5,281.10

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Solution

The fourth proportional to 5,453.90, 8,190.45 and 5,281.10 is: 7,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.90 : 8,190.45 = 5,281.10 : x
  2. Step 2: Convert to fraction form
    5,453.90/8,190.45 = 5,281.10/x
  3. Step 3: Cross multiply
    5,453.90x = 8,190.45 × 5,281.10
  4. Step 4: Simplify right side
    5,453.90x = 43,254,585.50
  5. Step 5: Solve for x
    x = 43,254,585.50/5,453.90
  6. Step 6: Final answer
    x = 7,930.95

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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.