Home / 2,528.21-3,487.91-1,533.12

Finding the Fourth Proportional to 2,528.21, 3,487.91 and 1,533.12

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Solution

The fourth proportional to 2,528.21, 3,487.91 and 1,533.12 is: 2,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.21 : 3,487.91 = 1,533.12 : x
  2. Step 2: Convert to fraction form
    2,528.21/3,487.91 = 1,533.12/x
  3. Step 3: Cross multiply
    2,528.21x = 3,487.91 × 1,533.12
  4. Step 4: Simplify right side
    2,528.21x = 5,347,376.91
  5. Step 5: Solve for x
    x = 5,347,376.91/2,528.21
  6. Step 6: Final answer
    x = 2,115.09

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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.