Home / 4,378.81-6,039.33-2,807.05

Finding the Fourth Proportional to 4,378.81, 6,039.33 and 2,807.05

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Solution

The fourth proportional to 4,378.81, 6,039.33 and 2,807.05 is: 3,871.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.81 : 6,039.33 = 2,807.05 : x
  2. Step 2: Convert to fraction form
    4,378.81/6,039.33 = 2,807.05/x
  3. Step 3: Cross multiply
    4,378.81x = 6,039.33 × 2,807.05
  4. Step 4: Simplify right side
    4,378.81x = 16,952,701.28
  5. Step 5: Solve for x
    x = 16,952,701.28/4,378.81
  6. Step 6: Final answer
    x = 3,871.53

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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.