Home / 1,857.08-2,560.92-1,228.16

Finding the Fourth Proportional to 1,857.08, 2,560.92 and 1,228.16

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Solution

The fourth proportional to 1,857.08, 2,560.92 and 1,228.16 is: 1,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.08 : 2,560.92 = 1,228.16 : x
  2. Step 2: Convert to fraction form
    1,857.08/2,560.92 = 1,228.16/x
  3. Step 3: Cross multiply
    1,857.08x = 2,560.92 × 1,228.16
  4. Step 4: Simplify right side
    1,857.08x = 3,145,219.51
  5. Step 5: Solve for x
    x = 3,145,219.51/1,857.08
  6. Step 6: Final answer
    x = 1,693.64

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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.