Home / 4,428.60-6,642.90-3,116.40

Finding the Fourth Proportional to 4,428.60, 6,642.90 and 3,116.40

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Solution

The fourth proportional to 4,428.60, 6,642.90 and 3,116.40 is: 4,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.60 : 6,642.90 = 3,116.40 : x
  2. Step 2: Convert to fraction form
    4,428.60/6,642.90 = 3,116.40/x
  3. Step 3: Cross multiply
    4,428.60x = 6,642.90 × 3,116.40
  4. Step 4: Simplify right side
    4,428.60x = 20,701,933.56
  5. Step 5: Solve for x
    x = 20,701,933.56/4,428.60
  6. Step 6: Final answer
    x = 4,674.60

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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.