Home / 1,346.09-1,854.23-1,280.48

Finding the Fourth Proportional to 1,346.09, 1,854.23 and 1,280.48

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Solution

The fourth proportional to 1,346.09, 1,854.23 and 1,280.48 is: 1,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.09 : 1,854.23 = 1,280.48 : x
  2. Step 2: Convert to fraction form
    1,346.09/1,854.23 = 1,280.48/x
  3. Step 3: Cross multiply
    1,346.09x = 1,854.23 × 1,280.48
  4. Step 4: Simplify right side
    1,346.09x = 2,374,288.76
  5. Step 5: Solve for x
    x = 2,374,288.76/1,346.09
  6. Step 6: Final answer
    x = 1,763.85

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1.5x scale

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.