Home / 3,155.40-4,730.22-1,207.08

Finding the Fourth Proportional to 3,155.40, 4,730.22 and 1,207.08

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Solution

The fourth proportional to 3,155.40, 4,730.22 and 1,207.08 is: 1,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.40 : 4,730.22 = 1,207.08 : x
  2. Step 2: Convert to fraction form
    3,155.40/4,730.22 = 1,207.08/x
  3. Step 3: Cross multiply
    3,155.40x = 4,730.22 × 1,207.08
  4. Step 4: Simplify right side
    3,155.40x = 5,709,753.96
  5. Step 5: Solve for x
    x = 5,709,753.96/3,155.40
  6. Step 6: Final answer
    x = 1,809.52

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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.