Home / 3,138.60-4,701.51-1,490.16

Finding the Fourth Proportional to 3,138.60, 4,701.51 and 1,490.16

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Solution

The fourth proportional to 3,138.60, 4,701.51 and 1,490.16 is: 2,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.60 : 4,701.51 = 1,490.16 : x
  2. Step 2: Convert to fraction form
    3,138.60/4,701.51 = 1,490.16/x
  3. Step 3: Cross multiply
    3,138.60x = 4,701.51 × 1,490.16
  4. Step 4: Simplify right side
    3,138.60x = 7,006,002.14
  5. Step 5: Solve for x
    x = 7,006,002.14/3,138.60
  6. Step 6: Final answer
    x = 2,232.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.