Home / 5,389.07-8,080.56-2,098.40

Finding the Fourth Proportional to 5,389.07, 8,080.56 and 2,098.40

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Solution

The fourth proportional to 5,389.07, 8,080.56 and 2,098.40 is: 3,146.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.07 : 8,080.56 = 2,098.40 : x
  2. Step 2: Convert to fraction form
    5,389.07/8,080.56 = 2,098.40/x
  3. Step 3: Cross multiply
    5,389.07x = 8,080.56 × 2,098.40
  4. Step 4: Simplify right side
    5,389.07x = 16,956,206.70
  5. Step 5: Solve for x
    x = 16,956,206.70/5,389.07
  6. Step 6: Final answer
    x = 3,146.41

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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.