Home / 6,118.10-8,438.28-4,125.50

Finding the Fourth Proportional to 6,118.10, 8,438.28 and 4,125.50

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Solution

The fourth proportional to 6,118.10, 8,438.28 and 4,125.50 is: 5,690.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,118.10 : 8,438.28 = 4,125.50 : x
  2. Step 2: Convert to fraction form
    6,118.10/8,438.28 = 4,125.50/x
  3. Step 3: Cross multiply
    6,118.10x = 8,438.28 × 4,125.50
  4. Step 4: Simplify right side
    6,118.10x = 34,812,124.14
  5. Step 5: Solve for x
    x = 34,812,124.14/6,118.10
  6. Step 6: Final answer
    x = 5,690.02

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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.