Home / 5,407.04-8,111.78-1,709.49

Finding the Fourth Proportional to 5,407.04, 8,111.78 and 1,709.49

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Solution

The fourth proportional to 5,407.04, 8,111.78 and 1,709.49 is: 2,564.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.04 : 8,111.78 = 1,709.49 : x
  2. Step 2: Convert to fraction form
    5,407.04/8,111.78 = 1,709.49/x
  3. Step 3: Cross multiply
    5,407.04x = 8,111.78 × 1,709.49
  4. Step 4: Simplify right side
    5,407.04x = 13,866,998.24
  5. Step 5: Solve for x
    x = 13,866,998.24/5,407.04
  6. Step 6: Final answer
    x = 2,564.62

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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.