Home / 6,479.80-8,937.39-4,238.08

Finding the Fourth Proportional to 6,479.80, 8,937.39 and 4,238.08

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Solution

The fourth proportional to 6,479.80, 8,937.39 and 4,238.08 is: 5,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.80 : 8,937.39 = 4,238.08 : x
  2. Step 2: Convert to fraction form
    6,479.80/8,937.39 = 4,238.08/x
  3. Step 3: Cross multiply
    6,479.80x = 8,937.39 × 4,238.08
  4. Step 4: Simplify right side
    6,479.80x = 37,877,373.81
  5. Step 5: Solve for x
    x = 37,877,373.81/6,479.80
  6. Step 6: Final answer
    x = 5,845.45

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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.