Home / 2,675.95-4,014.19-921.09

Finding the Fourth Proportional to 2,675.95, 4,014.19 and 921.09

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Solution

The fourth proportional to 2,675.95, 4,014.19 and 921.09 is: 1,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.95 : 4,014.19 = 921.09 : x
  2. Step 2: Convert to fraction form
    2,675.95/4,014.19 = 921.09/x
  3. Step 3: Cross multiply
    2,675.95x = 4,014.19 × 921.09
  4. Step 4: Simplify right side
    2,675.95x = 3,697,430.27
  5. Step 5: Solve for x
    x = 3,697,430.27/2,675.95
  6. Step 6: Final answer
    x = 1,381.73

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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.