Home / 1,875.49-2,806.17-1,122.20

Finding the Fourth Proportional to 1,875.49, 2,806.17 and 1,122.20

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Solution

The fourth proportional to 1,875.49, 2,806.17 and 1,122.20 is: 1,679.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.49 : 2,806.17 = 1,122.20 : x
  2. Step 2: Convert to fraction form
    1,875.49/2,806.17 = 1,122.20/x
  3. Step 3: Cross multiply
    1,875.49x = 2,806.17 × 1,122.20
  4. Step 4: Simplify right side
    1,875.49x = 3,149,078.36
  5. Step 5: Solve for x
    x = 3,149,078.36/1,875.49
  6. Step 6: Final answer
    x = 1,679.07

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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.