Home / 5,406.13-8,109.19-1,302.13

Finding the Fourth Proportional to 5,406.13, 8,109.19 and 1,302.13

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Solution

The fourth proportional to 5,406.13, 8,109.19 and 1,302.13 is: 1,953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.13 : 8,109.19 = 1,302.13 : x
  2. Step 2: Convert to fraction form
    5,406.13/8,109.19 = 1,302.13/x
  3. Step 3: Cross multiply
    5,406.13x = 8,109.19 × 1,302.13
  4. Step 4: Simplify right side
    5,406.13x = 10,559,219.57
  5. Step 5: Solve for x
    x = 10,559,219.57/5,406.13
  6. Step 6: Final answer
    x = 1,953.19

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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.