Home / 1,675.45-2,509.05-1,381.15

Finding the Fourth Proportional to 1,675.45, 2,509.05 and 1,381.15

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Solution

The fourth proportional to 1,675.45, 2,509.05 and 1,381.15 is: 2,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.45 : 2,509.05 = 1,381.15 : x
  2. Step 2: Convert to fraction form
    1,675.45/2,509.05 = 1,381.15/x
  3. Step 3: Cross multiply
    1,675.45x = 2,509.05 × 1,381.15
  4. Step 4: Simplify right side
    1,675.45x = 3,465,361.86
  5. Step 5: Solve for x
    x = 3,465,361.86/1,675.45
  6. Step 6: Final answer
    x = 2,068.32

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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.