Home / 3,114.19-4,297.58-1,787.98

Finding the Fourth Proportional to 3,114.19, 4,297.58 and 1,787.98

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Solution

The fourth proportional to 3,114.19, 4,297.58 and 1,787.98 is: 2,467.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.19 : 4,297.58 = 1,787.98 : x
  2. Step 2: Convert to fraction form
    3,114.19/4,297.58 = 1,787.98/x
  3. Step 3: Cross multiply
    3,114.19x = 4,297.58 × 1,787.98
  4. Step 4: Simplify right side
    3,114.19x = 7,683,980.81
  5. Step 5: Solve for x
    x = 7,683,980.81/3,114.19
  6. Step 6: Final answer
    x = 2,467.41

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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.