Home / 6,390.30-8,818.52-3,595.80

Finding the Fourth Proportional to 6,390.30, 8,818.52 and 3,595.80

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Solution

The fourth proportional to 6,390.30, 8,818.52 and 3,595.80 is: 4,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.30 : 8,818.52 = 3,595.80 : x
  2. Step 2: Convert to fraction form
    6,390.30/8,818.52 = 3,595.80/x
  3. Step 3: Cross multiply
    6,390.30x = 8,818.52 × 3,595.80
  4. Step 4: Simplify right side
    6,390.30x = 31,709,634.22
  5. Step 5: Solve for x
    x = 31,709,634.22/6,390.30
  6. Step 6: Final answer
    x = 4,962.15

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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.