Home / 2,913.53-4,020.67-1,587.25

Finding the Fourth Proportional to 2,913.53, 4,020.67 and 1,587.25

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Solution

The fourth proportional to 2,913.53, 4,020.67 and 1,587.25 is: 2,190.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.53 : 4,020.67 = 1,587.25 : x
  2. Step 2: Convert to fraction form
    2,913.53/4,020.67 = 1,587.25/x
  3. Step 3: Cross multiply
    2,913.53x = 4,020.67 × 1,587.25
  4. Step 4: Simplify right side
    2,913.53x = 6,381,815.47
  5. Step 5: Solve for x
    x = 6,381,815.47/2,913.53
  6. Step 6: Final answer
    x = 2,190.41

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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.