Home / 2,518.90-3,476.01-1,399.85

Finding the Fourth Proportional to 2,518.90, 3,476.01 and 1,399.85

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Solution

The fourth proportional to 2,518.90, 3,476.01 and 1,399.85 is: 1,931.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.90 : 3,476.01 = 1,399.85 : x
  2. Step 2: Convert to fraction form
    2,518.90/3,476.01 = 1,399.85/x
  3. Step 3: Cross multiply
    2,518.90x = 3,476.01 × 1,399.85
  4. Step 4: Simplify right side
    2,518.90x = 4,865,893.50
  5. Step 5: Solve for x
    x = 4,865,893.50/2,518.90
  6. Step 6: Final answer
    x = 1,931.76

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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.