Home / 1,732.42-2,391.56-1,312.84

Finding the Fourth Proportional to 1,732.42, 2,391.56 and 1,312.84

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Solution

The fourth proportional to 1,732.42, 2,391.56 and 1,312.84 is: 1,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.42 : 2,391.56 = 1,312.84 : x
  2. Step 2: Convert to fraction form
    1,732.42/2,391.56 = 1,312.84/x
  3. Step 3: Cross multiply
    1,732.42x = 2,391.56 × 1,312.84
  4. Step 4: Simplify right side
    1,732.42x = 3,139,735.63
  5. Step 5: Solve for x
    x = 3,139,735.63/1,732.42
  6. Step 6: Final answer
    x = 1,812.34

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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.