Home / 5,087.90-7,632.48-1,800.20

Finding the Fourth Proportional to 5,087.90, 7,632.48 and 1,800.20

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Solution

The fourth proportional to 5,087.90, 7,632.48 and 1,800.20 is: 2,700.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.90 : 7,632.48 = 1,800.20 : x
  2. Step 2: Convert to fraction form
    5,087.90/7,632.48 = 1,800.20/x
  3. Step 3: Cross multiply
    5,087.90x = 7,632.48 × 1,800.20
  4. Step 4: Simplify right side
    5,087.90x = 13,739,990.50
  5. Step 5: Solve for x
    x = 13,739,990.50/5,087.90
  6. Step 6: Final answer
    x = 2,700.52

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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.