Home / 5,538.60-8,307.96-1,378.68

Finding the Fourth Proportional to 5,538.60, 8,307.96 and 1,378.68

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Solution

The fourth proportional to 5,538.60, 8,307.96 and 1,378.68 is: 2,068.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.60 : 8,307.96 = 1,378.68 : x
  2. Step 2: Convert to fraction form
    5,538.60/8,307.96 = 1,378.68/x
  3. Step 3: Cross multiply
    5,538.60x = 8,307.96 × 1,378.68
  4. Step 4: Simplify right side
    5,538.60x = 11,454,018.29
  5. Step 5: Solve for x
    x = 11,454,018.29/5,538.60
  6. Step 6: Final answer
    x = 2,068.03

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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.