Home / 2,340.21-3,508.55-1,415.57

Finding the Fourth Proportional to 2,340.21, 3,508.55 and 1,415.57

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Solution

The fourth proportional to 2,340.21, 3,508.55 and 1,415.57 is: 2,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.21 : 3,508.55 = 1,415.57 : x
  2. Step 2: Convert to fraction form
    2,340.21/3,508.55 = 1,415.57/x
  3. Step 3: Cross multiply
    2,340.21x = 3,508.55 × 1,415.57
  4. Step 4: Simplify right side
    2,340.21x = 4,966,598.12
  5. Step 5: Solve for x
    x = 4,966,598.12/2,340.21
  6. Step 6: Final answer
    x = 2,122.29

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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.