Home / 1,538.60-2,304.66-1,423.40

Finding the Fourth Proportional to 1,538.60, 2,304.66 and 1,423.40

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Solution

The fourth proportional to 1,538.60, 2,304.66 and 1,423.40 is: 2,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.60 : 2,304.66 = 1,423.40 : x
  2. Step 2: Convert to fraction form
    1,538.60/2,304.66 = 1,423.40/x
  3. Step 3: Cross multiply
    1,538.60x = 2,304.66 × 1,423.40
  4. Step 4: Simplify right side
    1,538.60x = 3,280,453.04
  5. Step 5: Solve for x
    x = 3,280,453.04/1,538.60
  6. Step 6: Final answer
    x = 2,132.10

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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.