Home / 1,437.60-2,155.08-463.20

Finding the Fourth Proportional to 1,437.60, 2,155.08 and 463.20

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Solution

The fourth proportional to 1,437.60, 2,155.08 and 463.20 is: 694.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.60 : 2,155.08 = 463.20 : x
  2. Step 2: Convert to fraction form
    1,437.60/2,155.08 = 463.20/x
  3. Step 3: Cross multiply
    1,437.60x = 2,155.08 × 463.20
  4. Step 4: Simplify right side
    1,437.60x = 998,233.06
  5. Step 5: Solve for x
    x = 998,233.06/1,437.60
  6. Step 6: Final answer
    x = 694.37

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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.