Home / 1,254.32-1,872.50-1,090.34

Finding the Fourth Proportional to 1,254.32, 1,872.50 and 1,090.34

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Solution

The fourth proportional to 1,254.32, 1,872.50 and 1,090.34 is: 1,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.32 : 1,872.50 = 1,090.34 : x
  2. Step 2: Convert to fraction form
    1,254.32/1,872.50 = 1,090.34/x
  3. Step 3: Cross multiply
    1,254.32x = 1,872.50 × 1,090.34
  4. Step 4: Simplify right side
    1,254.32x = 2,041,661.65
  5. Step 5: Solve for x
    x = 2,041,661.65/1,254.32
  6. Step 6: Final answer
    x = 1,627.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.