Home / 1,787.28-2,466.84-1,123.62

Finding the Fourth Proportional to 1,787.28, 2,466.84 and 1,123.62

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Solution

The fourth proportional to 1,787.28, 2,466.84 and 1,123.62 is: 1,550.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.28 : 2,466.84 = 1,123.62 : x
  2. Step 2: Convert to fraction form
    1,787.28/2,466.84 = 1,123.62/x
  3. Step 3: Cross multiply
    1,787.28x = 2,466.84 × 1,123.62
  4. Step 4: Simplify right side
    1,787.28x = 2,771,790.76
  5. Step 5: Solve for x
    x = 2,771,790.76/1,787.28
  6. Step 6: Final answer
    x = 1,550.84

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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.