Home / 1,106.86-1,528.10-734.35

Finding the Fourth Proportional to 1,106.86, 1,528.10 and 734.35

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Solution

The fourth proportional to 1,106.86, 1,528.10 and 734.35 is: 1,013.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106.86 : 1,528.10 = 734.35 : x
  2. Step 2: Convert to fraction form
    1,106.86/1,528.10 = 734.35/x
  3. Step 3: Cross multiply
    1,106.86x = 1,528.10 × 734.35
  4. Step 4: Simplify right side
    1,106.86x = 1,122,156.56
  5. Step 5: Solve for x
    x = 1,122,156.56/1,106.86
  6. Step 6: Final answer
    x = 1,013.82

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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.