Home / 2,435.20-3,654.60-975.40

Finding the Fourth Proportional to 2,435.20, 3,654.60 and 975.40

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Solution

The fourth proportional to 2,435.20, 3,654.60 and 975.40 is: 1,463.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,435.20 : 3,654.60 = 975.40 : x
  2. Step 2: Convert to fraction form
    2,435.20/3,654.60 = 975.40/x
  3. Step 3: Cross multiply
    2,435.20x = 3,654.60 × 975.40
  4. Step 4: Simplify right side
    2,435.20x = 3,564,696.84
  5. Step 5: Solve for x
    x = 3,564,696.84/2,435.20
  6. Step 6: Final answer
    x = 1,463.82

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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.