Home / 3,170.40-4,746.96-1,628.16

Finding the Fourth Proportional to 3,170.40, 4,746.96 and 1,628.16

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Solution

The fourth proportional to 3,170.40, 4,746.96 and 1,628.16 is: 2,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.40 : 4,746.96 = 1,628.16 : x
  2. Step 2: Convert to fraction form
    3,170.40/4,746.96 = 1,628.16/x
  3. Step 3: Cross multiply
    3,170.40x = 4,746.96 × 1,628.16
  4. Step 4: Simplify right side
    3,170.40x = 7,728,810.39
  5. Step 5: Solve for x
    x = 7,728,810.39/3,170.40
  6. Step 6: Final answer
    x = 2,437.80

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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.