Home / 1,778.12-2,660.73-1,547.87

Finding the Fourth Proportional to 1,778.12, 2,660.73 and 1,547.87

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Solution

The fourth proportional to 1,778.12, 2,660.73 and 1,547.87 is: 2,316.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.12 : 2,660.73 = 1,547.87 : x
  2. Step 2: Convert to fraction form
    1,778.12/2,660.73 = 1,547.87/x
  3. Step 3: Cross multiply
    1,778.12x = 2,660.73 × 1,547.87
  4. Step 4: Simplify right side
    1,778.12x = 4,118,464.15
  5. Step 5: Solve for x
    x = 4,118,464.15/1,778.12
  6. Step 6: Final answer
    x = 2,316.19

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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.