Home / 1,613.70-2,417.49-1,285.25

Finding the Fourth Proportional to 1,613.70, 2,417.49 and 1,285.25

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Solution

The fourth proportional to 1,613.70, 2,417.49 and 1,285.25 is: 1,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.70 : 2,417.49 = 1,285.25 : x
  2. Step 2: Convert to fraction form
    1,613.70/2,417.49 = 1,285.25/x
  3. Step 3: Cross multiply
    1,613.70x = 2,417.49 × 1,285.25
  4. Step 4: Simplify right side
    1,613.70x = 3,107,066.94
  5. Step 5: Solve for x
    x = 3,107,066.94/1,613.70
  6. Step 6: Final answer
    x = 1,925.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.