Home / 2,782.49-4,175.27-1,140.19

Finding the Fourth Proportional to 2,782.49, 4,175.27 and 1,140.19

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Solution

The fourth proportional to 2,782.49, 4,175.27 and 1,140.19 is: 1,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.49 : 4,175.27 = 1,140.19 : x
  2. Step 2: Convert to fraction form
    2,782.49/4,175.27 = 1,140.19/x
  3. Step 3: Cross multiply
    2,782.49x = 4,175.27 × 1,140.19
  4. Step 4: Simplify right side
    2,782.49x = 4,760,601.10
  5. Step 5: Solve for x
    x = 4,760,601.10/2,782.49
  6. Step 6: Final answer
    x = 1,710.91

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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.