Home / 3,112.51-4,669.46-1,357.80

Finding the Fourth Proportional to 3,112.51, 4,669.46 and 1,357.80

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Solution

The fourth proportional to 3,112.51, 4,669.46 and 1,357.80 is: 2,037.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.51 : 4,669.46 = 1,357.80 : x
  2. Step 2: Convert to fraction form
    3,112.51/4,669.46 = 1,357.80/x
  3. Step 3: Cross multiply
    3,112.51x = 4,669.46 × 1,357.80
  4. Step 4: Simplify right side
    3,112.51x = 6,340,192.79
  5. Step 5: Solve for x
    x = 6,340,192.79/3,112.51
  6. Step 6: Final answer
    x = 2,037.00

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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.