Home / 6,387.60-8,814.19-3,554.52

Finding the Fourth Proportional to 6,387.60, 8,814.19 and 3,554.52

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Solution

The fourth proportional to 6,387.60, 8,814.19 and 3,554.52 is: 4,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.60 : 8,814.19 = 3,554.52 : x
  2. Step 2: Convert to fraction form
    6,387.60/8,814.19 = 3,554.52/x
  3. Step 3: Cross multiply
    6,387.60x = 8,814.19 × 3,554.52
  4. Step 4: Simplify right side
    6,387.60x = 31,330,214.64
  5. Step 5: Solve for x
    x = 31,330,214.64/6,387.60
  6. Step 6: Final answer
    x = 4,904.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.