Home / 2,921.40-4,374.96-1,535.90

Finding the Fourth Proportional to 2,921.40, 4,374.96 and 1,535.90

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Solution

The fourth proportional to 2,921.40, 4,374.96 and 1,535.90 is: 2,300.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.40 : 4,374.96 = 1,535.90 : x
  2. Step 2: Convert to fraction form
    2,921.40/4,374.96 = 1,535.90/x
  3. Step 3: Cross multiply
    2,921.40x = 4,374.96 × 1,535.90
  4. Step 4: Simplify right side
    2,921.40x = 6,719,479.19
  5. Step 5: Solve for x
    x = 6,719,479.19/2,921.40
  6. Step 6: Final answer
    x = 2,300.09

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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.