Home / 2,520.87-3,778.58-1,058.31

Finding the Fourth Proportional to 2,520.87, 3,778.58 and 1,058.31

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Solution

The fourth proportional to 2,520.87, 3,778.58 and 1,058.31 is: 1,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.87 : 3,778.58 = 1,058.31 : x
  2. Step 2: Convert to fraction form
    2,520.87/3,778.58 = 1,058.31/x
  3. Step 3: Cross multiply
    2,520.87x = 3,778.58 × 1,058.31
  4. Step 4: Simplify right side
    2,520.87x = 3,998,903.71
  5. Step 5: Solve for x
    x = 3,998,903.71/2,520.87
  6. Step 6: Final answer
    x = 1,586.32

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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.