Home / 2,412.90-3,329.64-1,528.99

Finding the Fourth Proportional to 2,412.90, 3,329.64 and 1,528.99

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Solution

The fourth proportional to 2,412.90, 3,329.64 and 1,528.99 is: 2,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.90 : 3,329.64 = 1,528.99 : x
  2. Step 2: Convert to fraction form
    2,412.90/3,329.64 = 1,528.99/x
  3. Step 3: Cross multiply
    2,412.90x = 3,329.64 × 1,528.99
  4. Step 4: Simplify right side
    2,412.90x = 5,090,977.94
  5. Step 5: Solve for x
    x = 5,090,977.94/2,412.90
  6. Step 6: Final answer
    x = 2,109.90

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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.