Home / 4,320.81-6,479.60-3,407.13

Finding the Fourth Proportional to 4,320.81, 6,479.60 and 3,407.13

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Solution

The fourth proportional to 4,320.81, 6,479.60 and 3,407.13 is: 5,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.81 : 6,479.60 = 3,407.13 : x
  2. Step 2: Convert to fraction form
    4,320.81/6,479.60 = 3,407.13/x
  3. Step 3: Cross multiply
    4,320.81x = 6,479.60 × 3,407.13
  4. Step 4: Simplify right side
    4,320.81x = 22,076,822.51
  5. Step 5: Solve for x
    x = 22,076,822.51/4,320.81
  6. Step 6: Final answer
    x = 5,109.42

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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.