Home / 1,561.38-2,354.06-1,455.63

Finding the Fourth Proportional to 1,561.38, 2,354.06 and 1,455.63

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Solution

The fourth proportional to 1,561.38, 2,354.06 and 1,455.63 is: 2,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.38 : 2,354.06 = 1,455.63 : x
  2. Step 2: Convert to fraction form
    1,561.38/2,354.06 = 1,455.63/x
  3. Step 3: Cross multiply
    1,561.38x = 2,354.06 × 1,455.63
  4. Step 4: Simplify right side
    1,561.38x = 3,426,633.08
  5. Step 5: Solve for x
    x = 3,426,633.08/1,561.38
  6. Step 6: Final answer
    x = 2,194.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.