Home / 2,564.70-3,539.29-1,385.77

Finding the Fourth Proportional to 2,564.70, 3,539.29 and 1,385.77

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Solution

The fourth proportional to 2,564.70, 3,539.29 and 1,385.77 is: 1,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,564.70 : 3,539.29 = 1,385.77 : x
  2. Step 2: Convert to fraction form
    2,564.70/3,539.29 = 1,385.77/x
  3. Step 3: Cross multiply
    2,564.70x = 3,539.29 × 1,385.77
  4. Step 4: Simplify right side
    2,564.70x = 4,904,641.90
  5. Step 5: Solve for x
    x = 4,904,641.90/2,564.70
  6. Step 6: Final answer
    x = 1,912.36

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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.