Home / 1,353.24-2,029.95-487.62

Finding the Fourth Proportional to 1,353.24, 2,029.95 and 487.62

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Solution

The fourth proportional to 1,353.24, 2,029.95 and 487.62 is: 731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.24 : 2,029.95 = 487.62 : x
  2. Step 2: Convert to fraction form
    1,353.24/2,029.95 = 487.62/x
  3. Step 3: Cross multiply
    1,353.24x = 2,029.95 × 487.62
  4. Step 4: Simplify right side
    1,353.24x = 989,844.22
  5. Step 5: Solve for x
    x = 989,844.22/1,353.24
  6. Step 6: Final answer
    x = 731.46

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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.