Home / 4,378.79-6,038.55-2,885.22

Finding the Fourth Proportional to 4,378.79, 6,038.55 and 2,885.22

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Solution

The fourth proportional to 4,378.79, 6,038.55 and 2,885.22 is: 3,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.79 : 6,038.55 = 2,885.22 : x
  2. Step 2: Convert to fraction form
    4,378.79/6,038.55 = 2,885.22/x
  3. Step 3: Cross multiply
    4,378.79x = 6,038.55 × 2,885.22
  4. Step 4: Simplify right side
    4,378.79x = 17,422,545.23
  5. Step 5: Solve for x
    x = 17,422,545.23/4,378.79
  6. Step 6: Final answer
    x = 3,978.85

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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.