Home / 4,155.84-6,228.36-1,689.30

Finding the Fourth Proportional to 4,155.84, 6,228.36 and 1,689.30

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Solution

The fourth proportional to 4,155.84, 6,228.36 and 1,689.30 is: 2,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.84 : 6,228.36 = 1,689.30 : x
  2. Step 2: Convert to fraction form
    4,155.84/6,228.36 = 1,689.30/x
  3. Step 3: Cross multiply
    4,155.84x = 6,228.36 × 1,689.30
  4. Step 4: Simplify right side
    4,155.84x = 10,521,568.55
  5. Step 5: Solve for x
    x = 10,521,568.55/4,155.84
  6. Step 6: Final answer
    x = 2,531.75

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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.