Home / 1,555.35-2,146.46-1,031.01

Finding the Fourth Proportional to 1,555.35, 2,146.46 and 1,031.01

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Solution

The fourth proportional to 1,555.35, 2,146.46 and 1,031.01 is: 1,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.35 : 2,146.46 = 1,031.01 : x
  2. Step 2: Convert to fraction form
    1,555.35/2,146.46 = 1,031.01/x
  3. Step 3: Cross multiply
    1,555.35x = 2,146.46 × 1,031.01
  4. Step 4: Simplify right side
    1,555.35x = 2,213,021.72
  5. Step 5: Solve for x
    x = 2,213,021.72/1,555.35
  6. Step 6: Final answer
    x = 1,422.84

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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.