Home / 6,875.24-9,488.10-4,221.80

Finding the Fourth Proportional to 6,875.24, 9,488.10 and 4,221.80

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Solution

The fourth proportional to 6,875.24, 9,488.10 and 4,221.80 is: 5,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.24 : 9,488.10 = 4,221.80 : x
  2. Step 2: Convert to fraction form
    6,875.24/9,488.10 = 4,221.80/x
  3. Step 3: Cross multiply
    6,875.24x = 9,488.10 × 4,221.80
  4. Step 4: Simplify right side
    6,875.24x = 40,056,860.58
  5. Step 5: Solve for x
    x = 40,056,860.58/6,875.24
  6. Step 6: Final answer
    x = 5,826.25

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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.