Home / 3,137.30-4,705.80-1,057.10

Finding the Fourth Proportional to 3,137.30, 4,705.80 and 1,057.10

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Solution

The fourth proportional to 3,137.30, 4,705.80 and 1,057.10 is: 1,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.30 : 4,705.80 = 1,057.10 : x
  2. Step 2: Convert to fraction form
    3,137.30/4,705.80 = 1,057.10/x
  3. Step 3: Cross multiply
    3,137.30x = 4,705.80 × 1,057.10
  4. Step 4: Simplify right side
    3,137.30x = 4,974,501.18
  5. Step 5: Solve for x
    x = 4,974,501.18/3,137.30
  6. Step 6: Final answer
    x = 1,585.60

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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.