Home / 1,337.10-2,004.03-815.46

Finding the Fourth Proportional to 1,337.10, 2,004.03 and 815.46

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Solution

The fourth proportional to 1,337.10, 2,004.03 and 815.46 is: 1,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.10 : 2,004.03 = 815.46 : x
  2. Step 2: Convert to fraction form
    1,337.10/2,004.03 = 815.46/x
  3. Step 3: Cross multiply
    1,337.10x = 2,004.03 × 815.46
  4. Step 4: Simplify right side
    1,337.10x = 1,634,206.30
  5. Step 5: Solve for x
    x = 1,634,206.30/1,337.10
  6. Step 6: Final answer
    x = 1,222.20

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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.