Home / 2,865.60-4,298.40-1,772.10

Finding the Fourth Proportional to 2,865.60, 4,298.40 and 1,772.10

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Solution

The fourth proportional to 2,865.60, 4,298.40 and 1,772.10 is: 2,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.60 : 4,298.40 = 1,772.10 : x
  2. Step 2: Convert to fraction form
    2,865.60/4,298.40 = 1,772.10/x
  3. Step 3: Cross multiply
    2,865.60x = 4,298.40 × 1,772.10
  4. Step 4: Simplify right side
    2,865.60x = 7,617,194.64
  5. Step 5: Solve for x
    x = 7,617,194.64/2,865.60
  6. Step 6: Final answer
    x = 2,658.15

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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.