Home / 1,286.60-1,929.50-464.76

Finding the Fourth Proportional to 1,286.60, 1,929.50 and 464.76

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Solution

The fourth proportional to 1,286.60, 1,929.50 and 464.76 is: 697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.60 : 1,929.50 = 464.76 : x
  2. Step 2: Convert to fraction form
    1,286.60/1,929.50 = 464.76/x
  3. Step 3: Cross multiply
    1,286.60x = 1,929.50 × 464.76
  4. Step 4: Simplify right side
    1,286.60x = 896,754.42
  5. Step 5: Solve for x
    x = 896,754.42/1,286.60
  6. Step 6: Final answer
    x = 697.00

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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.