Home / 1,403.30-1,935.42-1,346.60

Finding the Fourth Proportional to 1,403.30, 1,935.42 and 1,346.60

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Solution

The fourth proportional to 1,403.30, 1,935.42 and 1,346.60 is: 1,857.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.30 : 1,935.42 = 1,346.60 : x
  2. Step 2: Convert to fraction form
    1,403.30/1,935.42 = 1,346.60/x
  3. Step 3: Cross multiply
    1,403.30x = 1,935.42 × 1,346.60
  4. Step 4: Simplify right side
    1,403.30x = 2,606,236.57
  5. Step 5: Solve for x
    x = 2,606,236.57/1,403.30
  6. Step 6: Final answer
    x = 1,857.22

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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.