Home / 5,509.40-8,265.15-1,812.70

Finding the Fourth Proportional to 5,509.40, 8,265.15 and 1,812.70

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Solution

The fourth proportional to 5,509.40, 8,265.15 and 1,812.70 is: 2,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.40 : 8,265.15 = 1,812.70 : x
  2. Step 2: Convert to fraction form
    5,509.40/8,265.15 = 1,812.70/x
  3. Step 3: Cross multiply
    5,509.40x = 8,265.15 × 1,812.70
  4. Step 4: Simplify right side
    5,509.40x = 14,982,187.02
  5. Step 5: Solve for x
    x = 14,982,187.02/5,509.40
  6. Step 6: Final answer
    x = 2,719.39

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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.