Home / 1,712.24-2,362.90-1,122.77

Finding the Fourth Proportional to 1,712.24, 2,362.90 and 1,122.77

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Solution

The fourth proportional to 1,712.24, 2,362.90 and 1,122.77 is: 1,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.24 : 2,362.90 = 1,122.77 : x
  2. Step 2: Convert to fraction form
    1,712.24/2,362.90 = 1,122.77/x
  3. Step 3: Cross multiply
    1,712.24x = 2,362.90 × 1,122.77
  4. Step 4: Simplify right side
    1,712.24x = 2,652,981.42
  5. Step 5: Solve for x
    x = 2,652,981.42/1,712.24
  6. Step 6: Final answer
    x = 1,549.43

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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.