Home / 2,815.47-4,217.07-1,582.23

Finding the Fourth Proportional to 2,815.47, 4,217.07 and 1,582.23

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Solution

The fourth proportional to 2,815.47, 4,217.07 and 1,582.23 is: 2,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.47 : 4,217.07 = 1,582.23 : x
  2. Step 2: Convert to fraction form
    2,815.47/4,217.07 = 1,582.23/x
  3. Step 3: Cross multiply
    2,815.47x = 4,217.07 × 1,582.23
  4. Step 4: Simplify right side
    2,815.47x = 6,672,374.67
  5. Step 5: Solve for x
    x = 6,672,374.67/2,815.47
  6. Step 6: Final answer
    x = 2,369.90

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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.