Home / 2,565.60-3,847.44-1,698.72

Finding the Fourth Proportional to 2,565.60, 3,847.44 and 1,698.72

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Solution

The fourth proportional to 2,565.60, 3,847.44 and 1,698.72 is: 2,547.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.60 : 3,847.44 = 1,698.72 : x
  2. Step 2: Convert to fraction form
    2,565.60/3,847.44 = 1,698.72/x
  3. Step 3: Cross multiply
    2,565.60x = 3,847.44 × 1,698.72
  4. Step 4: Simplify right side
    2,565.60x = 6,535,723.28
  5. Step 5: Solve for x
    x = 6,535,723.28/2,565.60
  6. Step 6: Final answer
    x = 2,547.44

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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.