Home / 1,808.28-2,495.08-1,145.35

Finding the Fourth Proportional to 1,808.28, 2,495.08 and 1,145.35

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Solution

The fourth proportional to 1,808.28, 2,495.08 and 1,145.35 is: 1,580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.28 : 2,495.08 = 1,145.35 : x
  2. Step 2: Convert to fraction form
    1,808.28/2,495.08 = 1,145.35/x
  3. Step 3: Cross multiply
    1,808.28x = 2,495.08 × 1,145.35
  4. Step 4: Simplify right side
    1,808.28x = 2,857,730.78
  5. Step 5: Solve for x
    x = 2,857,730.78/1,808.28
  6. Step 6: Final answer
    x = 1,580.36

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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.