Home / 2,587.42-3,570.72-1,408.57

Finding the Fourth Proportional to 2,587.42, 3,570.72 and 1,408.57

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Solution

The fourth proportional to 2,587.42, 3,570.72 and 1,408.57 is: 1,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.42 : 3,570.72 = 1,408.57 : x
  2. Step 2: Convert to fraction form
    2,587.42/3,570.72 = 1,408.57/x
  3. Step 3: Cross multiply
    2,587.42x = 3,570.72 × 1,408.57
  4. Step 4: Simplify right side
    2,587.42x = 5,029,609.07
  5. Step 5: Solve for x
    x = 5,029,609.07/2,587.42
  6. Step 6: Final answer
    x = 1,943.87

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