Home / 3,127.43-4,316.78-1,869.36

Finding the Fourth Proportional to 3,127.43, 4,316.78 and 1,869.36

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Solution

The fourth proportional to 3,127.43, 4,316.78 and 1,869.36 is: 2,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.43 : 4,316.78 = 1,869.36 : x
  2. Step 2: Convert to fraction form
    3,127.43/4,316.78 = 1,869.36/x
  3. Step 3: Cross multiply
    3,127.43x = 4,316.78 × 1,869.36
  4. Step 4: Simplify right side
    3,127.43x = 8,069,606.51
  5. Step 5: Solve for x
    x = 8,069,606.51/3,127.43
  6. Step 6: Final answer
    x = 2,580.27

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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.