Home / 2,377.55-3,281.09-1,315.34

Finding the Fourth Proportional to 2,377.55, 3,281.09 and 1,315.34

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Solution

The fourth proportional to 2,377.55, 3,281.09 and 1,315.34 is: 1,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,377.55 : 3,281.09 = 1,315.34 : x
  2. Step 2: Convert to fraction form
    2,377.55/3,281.09 = 1,315.34/x
  3. Step 3: Cross multiply
    2,377.55x = 3,281.09 × 1,315.34
  4. Step 4: Simplify right side
    2,377.55x = 4,315,745.64
  5. Step 5: Solve for x
    x = 4,315,745.64/2,377.55
  6. Step 6: Final answer
    x = 1,815.21

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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.