Home / 2,155.24-2,975.22-1,766.44

Finding the Fourth Proportional to 2,155.24, 2,975.22 and 1,766.44

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Solution

The fourth proportional to 2,155.24, 2,975.22 and 1,766.44 is: 2,438.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.24 : 2,975.22 = 1,766.44 : x
  2. Step 2: Convert to fraction form
    2,155.24/2,975.22 = 1,766.44/x
  3. Step 3: Cross multiply
    2,155.24x = 2,975.22 × 1,766.44
  4. Step 4: Simplify right side
    2,155.24x = 5,255,547.62
  5. Step 5: Solve for x
    x = 5,255,547.62/2,155.24
  6. Step 6: Final answer
    x = 2,438.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.