Home / 1,988.97-2,983.23-528.24

Finding the Fourth Proportional to 1,988.97, 2,983.23 and 528.24

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Solution

The fourth proportional to 1,988.97, 2,983.23 and 528.24 is: 792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.97 : 2,983.23 = 528.24 : x
  2. Step 2: Convert to fraction form
    1,988.97/2,983.23 = 528.24/x
  3. Step 3: Cross multiply
    1,988.97x = 2,983.23 × 528.24
  4. Step 4: Simplify right side
    1,988.97x = 1,575,858.77
  5. Step 5: Solve for x
    x = 1,575,858.77/1,988.97
  6. Step 6: Final answer
    x = 792.30

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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.