Home / 5,479.70-8,215.23-2,357.15

Finding the Fourth Proportional to 5,479.70, 8,215.23 and 2,357.15

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Solution

The fourth proportional to 5,479.70, 8,215.23 and 2,357.15 is: 3,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.70 : 8,215.23 = 2,357.15 : x
  2. Step 2: Convert to fraction form
    5,479.70/8,215.23 = 2,357.15/x
  3. Step 3: Cross multiply
    5,479.70x = 8,215.23 × 2,357.15
  4. Step 4: Simplify right side
    5,479.70x = 19,364,488.32
  5. Step 5: Solve for x
    x = 19,364,488.32/5,479.70
  6. Step 6: Final answer
    x = 3,533.86

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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.