Home / 5,243.13-7,238.43-4,127.76

Finding the Fourth Proportional to 5,243.13, 7,238.43 and 4,127.76

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Solution

The fourth proportional to 5,243.13, 7,238.43 and 4,127.76 is: 5,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.13 : 7,238.43 = 4,127.76 : x
  2. Step 2: Convert to fraction form
    5,243.13/7,238.43 = 4,127.76/x
  3. Step 3: Cross multiply
    5,243.13x = 7,238.43 × 4,127.76
  4. Step 4: Simplify right side
    5,243.13x = 29,878,501.82
  5. Step 5: Solve for x
    x = 29,878,501.82/5,243.13
  6. Step 6: Final answer
    x = 5,698.60

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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.