Home / 2,688.23-3,712.91-2,451.77

Finding the Fourth Proportional to 2,688.23, 3,712.91 and 2,451.77

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Solution

The fourth proportional to 2,688.23, 3,712.91 and 2,451.77 is: 3,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.23 : 3,712.91 = 2,451.77 : x
  2. Step 2: Convert to fraction form
    2,688.23/3,712.91 = 2,451.77/x
  3. Step 3: Cross multiply
    2,688.23x = 3,712.91 × 2,451.77
  4. Step 4: Simplify right side
    2,688.23x = 9,103,184.45
  5. Step 5: Solve for x
    x = 9,103,184.45/2,688.23
  6. Step 6: Final answer
    x = 3,386.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.