Home / 5,720.40-8,580.83-1,560.56

Finding the Fourth Proportional to 5,720.40, 8,580.83 and 1,560.56

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Solution

The fourth proportional to 5,720.40, 8,580.83 and 1,560.56 is: 2,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.40 : 8,580.83 = 1,560.56 : x
  2. Step 2: Convert to fraction form
    5,720.40/8,580.83 = 1,560.56/x
  3. Step 3: Cross multiply
    5,720.40x = 8,580.83 × 1,560.56
  4. Step 4: Simplify right side
    5,720.40x = 13,390,849.36
  5. Step 5: Solve for x
    x = 13,390,849.36/5,720.40
  6. Step 6: Final answer
    x = 2,340.89

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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.