Home / 1,359.05-2,037.57-434.08

Finding the Fourth Proportional to 1,359.05, 2,037.57 and 434.08

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Solution

The fourth proportional to 1,359.05, 2,037.57 and 434.08 is: 650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359.05 : 2,037.57 = 434.08 : x
  2. Step 2: Convert to fraction form
    1,359.05/2,037.57 = 434.08/x
  3. Step 3: Cross multiply
    1,359.05x = 2,037.57 × 434.08
  4. Step 4: Simplify right side
    1,359.05x = 884,460.29
  5. Step 5: Solve for x
    x = 884,460.29/1,359.05
  6. Step 6: Final answer
    x = 650.80

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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.