Home / 7,568.40-11,349.90-3,124.20

Finding the Fourth Proportional to 7,568.40, 11,349.90 and 3,124.20

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Solution

The fourth proportional to 7,568.40, 11,349.90 and 3,124.20 is: 4,685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,568.40 : 11,349.90 = 3,124.20 : x
  2. Step 2: Convert to fraction form
    7,568.40/11,349.90 = 3,124.20/x
  3. Step 3: Cross multiply
    7,568.40x = 11,349.90 × 3,124.20
  4. Step 4: Simplify right side
    7,568.40x = 35,459,357.58
  5. Step 5: Solve for x
    x = 35,459,357.58/7,568.40
  6. Step 6: Final answer
    x = 4,685.19

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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.