Home / 5,386.12-8,079.26-1,876.18

Finding the Fourth Proportional to 5,386.12, 8,079.26 and 1,876.18

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Solution

The fourth proportional to 5,386.12, 8,079.26 and 1,876.18 is: 2,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.12 : 8,079.26 = 1,876.18 : x
  2. Step 2: Convert to fraction form
    5,386.12/8,079.26 = 1,876.18/x
  3. Step 3: Cross multiply
    5,386.12x = 8,079.26 × 1,876.18
  4. Step 4: Simplify right side
    5,386.12x = 15,158,146.03
  5. Step 5: Solve for x
    x = 15,158,146.03/5,386.12
  6. Step 6: Final answer
    x = 2,814.30

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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.