Home / 5,020.40-7,530.60-1,323.20

Finding the Fourth Proportional to 5,020.40, 7,530.60 and 1,323.20

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Solution

The fourth proportional to 5,020.40, 7,530.60 and 1,323.20 is: 1,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.40 : 7,530.60 = 1,323.20 : x
  2. Step 2: Convert to fraction form
    5,020.40/7,530.60 = 1,323.20/x
  3. Step 3: Cross multiply
    5,020.40x = 7,530.60 × 1,323.20
  4. Step 4: Simplify right side
    5,020.40x = 9,964,489.92
  5. Step 5: Solve for x
    x = 9,964,489.92/5,020.40
  6. Step 6: Final answer
    x = 1,984.80

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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.