Home / 2,319.53-3,491.93-2,115.41

Finding the Fourth Proportional to 2,319.53, 3,491.93 and 2,115.41

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Solution

The fourth proportional to 2,319.53, 3,491.93 and 2,115.41 is: 3,184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.53 : 3,491.93 = 2,115.41 : x
  2. Step 2: Convert to fraction form
    2,319.53/3,491.93 = 2,115.41/x
  3. Step 3: Cross multiply
    2,319.53x = 3,491.93 × 2,115.41
  4. Step 4: Simplify right side
    2,319.53x = 7,386,851.47
  5. Step 5: Solve for x
    x = 7,386,851.47/2,319.53
  6. Step 6: Final answer
    x = 3,184.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.