Home / 4,975.04-6,865.56-2,879.20

Finding the Fourth Proportional to 4,975.04, 6,865.56 and 2,879.20

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Solution

The fourth proportional to 4,975.04, 6,865.56 and 2,879.20 is: 3,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.04 : 6,865.56 = 2,879.20 : x
  2. Step 2: Convert to fraction form
    4,975.04/6,865.56 = 2,879.20/x
  3. Step 3: Cross multiply
    4,975.04x = 6,865.56 × 2,879.20
  4. Step 4: Simplify right side
    4,975.04x = 19,767,320.35
  5. Step 5: Solve for x
    x = 19,767,320.35/4,975.04
  6. Step 6: Final answer
    x = 3,973.30

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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.