Home / 3,417.81-5,127.43-1,109.13

Finding the Fourth Proportional to 3,417.81, 5,127.43 and 1,109.13

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Solution

The fourth proportional to 3,417.81, 5,127.43 and 1,109.13 is: 1,663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.81 : 5,127.43 = 1,109.13 : x
  2. Step 2: Convert to fraction form
    3,417.81/5,127.43 = 1,109.13/x
  3. Step 3: Cross multiply
    3,417.81x = 5,127.43 × 1,109.13
  4. Step 4: Simplify right side
    3,417.81x = 5,686,986.44
  5. Step 5: Solve for x
    x = 5,686,986.44/3,417.81
  6. Step 6: Final answer
    x = 1,663.93

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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.