Home / 4,308.40-6,457.20-3,152.80

Finding the Fourth Proportional to 4,308.40, 6,457.20 and 3,152.80

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Solution

The fourth proportional to 4,308.40, 6,457.20 and 3,152.80 is: 4,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308.40 : 6,457.20 = 3,152.80 : x
  2. Step 2: Convert to fraction form
    4,308.40/6,457.20 = 3,152.80/x
  3. Step 3: Cross multiply
    4,308.40x = 6,457.20 × 3,152.80
  4. Step 4: Simplify right side
    4,308.40x = 20,358,260.16
  5. Step 5: Solve for x
    x = 20,358,260.16/4,308.40
  6. Step 6: Final answer
    x = 4,725.25

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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.