Home / 2,688.89-4,028.38-1,712.93

Finding the Fourth Proportional to 2,688.89, 4,028.38 and 1,712.93

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Solution

The fourth proportional to 2,688.89, 4,028.38 and 1,712.93 is: 2,566.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.89 : 4,028.38 = 1,712.93 : x
  2. Step 2: Convert to fraction form
    2,688.89/4,028.38 = 1,712.93/x
  3. Step 3: Cross multiply
    2,688.89x = 4,028.38 × 1,712.93
  4. Step 4: Simplify right side
    2,688.89x = 6,900,308.53
  5. Step 5: Solve for x
    x = 6,900,308.53/2,688.89
  6. Step 6: Final answer
    x = 2,566.23

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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.