Home / 5,688.03-8,530.38-1,989.57

Finding the Fourth Proportional to 5,688.03, 8,530.38 and 1,989.57

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Solution

The fourth proportional to 5,688.03, 8,530.38 and 1,989.57 is: 2,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.03 : 8,530.38 = 1,989.57 : x
  2. Step 2: Convert to fraction form
    5,688.03/8,530.38 = 1,989.57/x
  3. Step 3: Cross multiply
    5,688.03x = 8,530.38 × 1,989.57
  4. Step 4: Simplify right side
    5,688.03x = 16,971,820.13
  5. Step 5: Solve for x
    x = 16,971,820.13/5,688.03
  6. Step 6: Final answer
    x = 2,983.78

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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.