Home / 4,879.65-7,313.40-4,357.20

Finding the Fourth Proportional to 4,879.65, 7,313.40 and 4,357.20

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Solution

The fourth proportional to 4,879.65, 7,313.40 and 4,357.20 is: 6,530.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.65 : 7,313.40 = 4,357.20 : x
  2. Step 2: Convert to fraction form
    4,879.65/7,313.40 = 4,357.20/x
  3. Step 3: Cross multiply
    4,879.65x = 7,313.40 × 4,357.20
  4. Step 4: Simplify right side
    4,879.65x = 31,865,946.48
  5. Step 5: Solve for x
    x = 31,865,946.48/4,879.65
  6. Step 6: Final answer
    x = 6,530.38

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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.