Home / 1,573.18-2,356.30-1,427.88

Finding the Fourth Proportional to 1,573.18, 2,356.30 and 1,427.88

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Solution

The fourth proportional to 1,573.18, 2,356.30 and 1,427.88 is: 2,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.18 : 2,356.30 = 1,427.88 : x
  2. Step 2: Convert to fraction form
    1,573.18/2,356.30 = 1,427.88/x
  3. Step 3: Cross multiply
    1,573.18x = 2,356.30 × 1,427.88
  4. Step 4: Simplify right side
    1,573.18x = 3,364,513.02
  5. Step 5: Solve for x
    x = 3,364,513.02/1,573.18
  6. Step 6: Final answer
    x = 2,138.66

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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.