Home / 5,688.51-8,530.94-1,990.05

Finding the Fourth Proportional to 5,688.51, 8,530.94 and 1,990.05

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Solution

The fourth proportional to 5,688.51, 8,530.94 and 1,990.05 is: 2,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.51 : 8,530.94 = 1,990.05 : x
  2. Step 2: Convert to fraction form
    5,688.51/8,530.94 = 1,990.05/x
  3. Step 3: Cross multiply
    5,688.51x = 8,530.94 × 1,990.05
  4. Step 4: Simplify right side
    5,688.51x = 16,976,987.20
  5. Step 5: Solve for x
    x = 16,976,987.20/5,688.51
  6. Step 6: Final answer
    x = 2,984.43

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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.