Home / 2,685.92-4,029.53-1,125.06

Finding the Fourth Proportional to 2,685.92, 4,029.53 and 1,125.06

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Solution

The fourth proportional to 2,685.92, 4,029.53 and 1,125.06 is: 1,687.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.92 : 4,029.53 = 1,125.06 : x
  2. Step 2: Convert to fraction form
    2,685.92/4,029.53 = 1,125.06/x
  3. Step 3: Cross multiply
    2,685.92x = 4,029.53 × 1,125.06
  4. Step 4: Simplify right side
    2,685.92x = 4,533,457.40
  5. Step 5: Solve for x
    x = 4,533,457.40/2,685.92
  6. Step 6: Final answer
    x = 1,687.86

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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.