Home / 1,554.32-2,143.52-1,029.76

Finding the Fourth Proportional to 1,554.32, 2,143.52 and 1,029.76

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Solution

The fourth proportional to 1,554.32, 2,143.52 and 1,029.76 is: 1,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.32 : 2,143.52 = 1,029.76 : x
  2. Step 2: Convert to fraction form
    1,554.32/2,143.52 = 1,029.76/x
  3. Step 3: Cross multiply
    1,554.32x = 2,143.52 × 1,029.76
  4. Step 4: Simplify right side
    1,554.32x = 2,207,311.16
  5. Step 5: Solve for x
    x = 2,207,311.16/1,554.32
  6. Step 6: Final answer
    x = 1,420.11

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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.