Home / 6,143.90-9,215.85-4,905.51

Finding the Fourth Proportional to 6,143.90, 9,215.85 and 4,905.51

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Solution

The fourth proportional to 6,143.90, 9,215.85 and 4,905.51 is: 7,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.90 : 9,215.85 = 4,905.51 : x
  2. Step 2: Convert to fraction form
    6,143.90/9,215.85 = 4,905.51/x
  3. Step 3: Cross multiply
    6,143.90x = 9,215.85 × 4,905.51
  4. Step 4: Simplify right side
    6,143.90x = 45,208,444.33
  5. Step 5: Solve for x
    x = 45,208,444.33/6,143.90
  6. Step 6: Final answer
    x = 7,358.26

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1.5x scale

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.