Home / 2,909.60-4,364.40-2,569.40

Finding the Fourth Proportional to 2,909.60, 4,364.40 and 2,569.40

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Solution

The fourth proportional to 2,909.60, 4,364.40 and 2,569.40 is: 3,854.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.60 : 4,364.40 = 2,569.40 : x
  2. Step 2: Convert to fraction form
    2,909.60/4,364.40 = 2,569.40/x
  3. Step 3: Cross multiply
    2,909.60x = 4,364.40 × 2,569.40
  4. Step 4: Simplify right side
    2,909.60x = 11,213,889.36
  5. Step 5: Solve for x
    x = 11,213,889.36/2,909.60
  6. Step 6: Final answer
    x = 3,854.10

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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.