Home / 2,587.11-3,570.21-1,408.17

Finding the Fourth Proportional to 2,587.11, 3,570.21 and 1,408.17

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Solution

The fourth proportional to 2,587.11, 3,570.21 and 1,408.17 is: 1,943.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.11 : 3,570.21 = 1,408.17 : x
  2. Step 2: Convert to fraction form
    2,587.11/3,570.21 = 1,408.17/x
  3. Step 3: Cross multiply
    2,587.11x = 3,570.21 × 1,408.17
  4. Step 4: Simplify right side
    2,587.11x = 5,027,462.62
  5. Step 5: Solve for x
    x = 5,027,462.62/2,587.11
  6. Step 6: Final answer
    x = 1,943.27

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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.