Home / 5,678.80-8,518.20-4,296.40

Finding the Fourth Proportional to 5,678.80, 8,518.20 and 4,296.40

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Solution

The fourth proportional to 5,678.80, 8,518.20 and 4,296.40 is: 6,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.80 : 8,518.20 = 4,296.40 : x
  2. Step 2: Convert to fraction form
    5,678.80/8,518.20 = 4,296.40/x
  3. Step 3: Cross multiply
    5,678.80x = 8,518.20 × 4,296.40
  4. Step 4: Simplify right side
    5,678.80x = 36,597,594.48
  5. Step 5: Solve for x
    x = 36,597,594.48/5,678.80
  6. Step 6: Final answer
    x = 6,444.60

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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.