Home / 1,346.16-1,854.72-1,205.76

Finding the Fourth Proportional to 1,346.16, 1,854.72 and 1,205.76

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Solution

The fourth proportional to 1,346.16, 1,854.72 and 1,205.76 is: 1,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.16 : 1,854.72 = 1,205.76 : x
  2. Step 2: Convert to fraction form
    1,346.16/1,854.72 = 1,205.76/x
  3. Step 3: Cross multiply
    1,346.16x = 1,854.72 × 1,205.76
  4. Step 4: Simplify right side
    1,346.16x = 2,236,347.19
  5. Step 5: Solve for x
    x = 2,236,347.19/1,346.16
  6. Step 6: Final answer
    x = 1,661.28

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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.