Home / 1,821.19-2,731.55-588.47

Finding the Fourth Proportional to 1,821.19, 2,731.55 and 588.47

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Solution

The fourth proportional to 1,821.19, 2,731.55 and 588.47 is: 882.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.19 : 2,731.55 = 588.47 : x
  2. Step 2: Convert to fraction form
    1,821.19/2,731.55 = 588.47/x
  3. Step 3: Cross multiply
    1,821.19x = 2,731.55 × 588.47
  4. Step 4: Simplify right side
    1,821.19x = 1,607,439.12
  5. Step 5: Solve for x
    x = 1,607,439.12/1,821.19
  6. Step 6: Final answer
    x = 882.63

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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.