Home / 5,487.84-8,233.56-1,790.20

Finding the Fourth Proportional to 5,487.84, 8,233.56 and 1,790.20

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Solution

The fourth proportional to 5,487.84, 8,233.56 and 1,790.20 is: 2,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.84 : 8,233.56 = 1,790.20 : x
  2. Step 2: Convert to fraction form
    5,487.84/8,233.56 = 1,790.20/x
  3. Step 3: Cross multiply
    5,487.84x = 8,233.56 × 1,790.20
  4. Step 4: Simplify right side
    5,487.84x = 14,739,719.11
  5. Step 5: Solve for x
    x = 14,739,719.11/5,487.84
  6. Step 6: Final answer
    x = 2,685.89

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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.