Home / 7,587.58-11,384.97-3,428.86

Finding the Fourth Proportional to 7,587.58, 11,384.97 and 3,428.86

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Solution

The fourth proportional to 7,587.58, 11,384.97 and 3,428.86 is: 5,144.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.58 : 11,384.97 = 3,428.86 : x
  2. Step 2: Convert to fraction form
    7,587.58/11,384.97 = 3,428.86/x
  3. Step 3: Cross multiply
    7,587.58x = 11,384.97 × 3,428.86
  4. Step 4: Simplify right side
    7,587.58x = 39,037,411.31
  5. Step 5: Solve for x
    x = 39,037,411.31/7,587.58
  6. Step 6: Final answer
    x = 5,144.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.