Home / 1,557.21-2,336.73-632.70

Finding the Fourth Proportional to 1,557.21, 2,336.73 and 632.70

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Solution

The fourth proportional to 1,557.21, 2,336.73 and 632.70 is: 949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.21 : 2,336.73 = 632.70 : x
  2. Step 2: Convert to fraction form
    1,557.21/2,336.73 = 632.70/x
  3. Step 3: Cross multiply
    1,557.21x = 2,336.73 × 632.70
  4. Step 4: Simplify right side
    1,557.21x = 1,478,437.39
  5. Step 5: Solve for x
    x = 1,478,437.39/1,557.21
  6. Step 6: Final answer
    x = 949.42

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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.