Home / 6,739.61-9,298.40-4,220.91

Finding the Fourth Proportional to 6,739.61, 9,298.40 and 4,220.91

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Solution

The fourth proportional to 6,739.61, 9,298.40 and 4,220.91 is: 5,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739.61 : 9,298.40 = 4,220.91 : x
  2. Step 2: Convert to fraction form
    6,739.61/9,298.40 = 4,220.91/x
  3. Step 3: Cross multiply
    6,739.61x = 9,298.40 × 4,220.91
  4. Step 4: Simplify right side
    6,739.61x = 39,247,688.44
  5. Step 5: Solve for x
    x = 39,247,688.44/6,739.61
  6. Step 6: Final answer
    x = 5,823.44

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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.