Home / 1,358.45-2,037.40-433.76

Finding the Fourth Proportional to 1,358.45, 2,037.40 and 433.76

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Solution

The fourth proportional to 1,358.45, 2,037.40 and 433.76 is: 650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.45 : 2,037.40 = 433.76 : x
  2. Step 2: Convert to fraction form
    1,358.45/2,037.40 = 433.76/x
  3. Step 3: Cross multiply
    1,358.45x = 2,037.40 × 433.76
  4. Step 4: Simplify right side
    1,358.45x = 883,733.79
  5. Step 5: Solve for x
    x = 883,733.79/1,358.45
  6. Step 6: Final answer
    x = 650.55

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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.