Home / 1,712.42-2,363.13-926.45

Finding the Fourth Proportional to 1,712.42, 2,363.13 and 926.45

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Solution

The fourth proportional to 1,712.42, 2,363.13 and 926.45 is: 1,278.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.42 : 2,363.13 = 926.45 : x
  2. Step 2: Convert to fraction form
    1,712.42/2,363.13 = 926.45/x
  3. Step 3: Cross multiply
    1,712.42x = 2,363.13 × 926.45
  4. Step 4: Simplify right side
    1,712.42x = 2,189,321.79
  5. Step 5: Solve for x
    x = 2,189,321.79/1,712.42
  6. Step 6: Final answer
    x = 1,278.50

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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.