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Finding the Fourth Proportional to 1,509.28, 2,082.84 and 846.08

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Solution

The fourth proportional to 1,509.28, 2,082.84 and 846.08 is: 1,167.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.28 : 2,082.84 = 846.08 : x
  2. Step 2: Convert to fraction form
    1,509.28/2,082.84 = 846.08/x
  3. Step 3: Cross multiply
    1,509.28x = 2,082.84 × 846.08
  4. Step 4: Simplify right side
    1,509.28x = 1,762,249.27
  5. Step 5: Solve for x
    x = 1,762,249.27/1,509.28
  6. Step 6: Final answer
    x = 1,167.61

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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.