Home / 6,240-8,612.36-3,587.44

Finding the Fourth Proportional to 6,240, 8,612.36 and 3,587.44

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Solution

The fourth proportional to 6,240, 8,612.36 and 3,587.44 is: 4,951.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240 : 8,612.36 = 3,587.44 : x
  2. Step 2: Convert to fraction form
    6,240/8,612.36 = 3,587.44/x
  3. Step 3: Cross multiply
    6,240x = 8,612.36 × 3,587.44
  4. Step 4: Simplify right side
    6,240x = 30,896,324.76
  5. Step 5: Solve for x
    x = 30,896,324.76/6,240
  6. Step 6: Final answer
    x = 4,951.33

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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.