Home / 2,239.08-3,090.20-1,354.72

Finding the Fourth Proportional to 2,239.08, 3,090.20 and 1,354.72

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Solution

The fourth proportional to 2,239.08, 3,090.20 and 1,354.72 is: 1,869.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.08 : 3,090.20 = 1,354.72 : x
  2. Step 2: Convert to fraction form
    2,239.08/3,090.20 = 1,354.72/x
  3. Step 3: Cross multiply
    2,239.08x = 3,090.20 × 1,354.72
  4. Step 4: Simplify right side
    2,239.08x = 4,186,355.74
  5. Step 5: Solve for x
    x = 4,186,355.74/2,239.08
  6. Step 6: Final answer
    x = 1,869.68

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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.