Home / 2,688.83-3,710.95-1,509.97

Finding the Fourth Proportional to 2,688.83, 3,710.95 and 1,509.97

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Solution

The fourth proportional to 2,688.83, 3,710.95 and 1,509.97 is: 2,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.83 : 3,710.95 = 1,509.97 : x
  2. Step 2: Convert to fraction form
    2,688.83/3,710.95 = 1,509.97/x
  3. Step 3: Cross multiply
    2,688.83x = 3,710.95 × 1,509.97
  4. Step 4: Simplify right side
    2,688.83x = 5,603,415.62
  5. Step 5: Solve for x
    x = 5,603,415.62/2,688.83
  6. Step 6: Final answer
    x = 2,083.96

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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.