Home / 1,775.08-2,451.30-1,678.12

Finding the Fourth Proportional to 1,775.08, 2,451.30 and 1,678.12

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Solution

The fourth proportional to 1,775.08, 2,451.30 and 1,678.12 is: 2,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.08 : 2,451.30 = 1,678.12 : x
  2. Step 2: Convert to fraction form
    1,775.08/2,451.30 = 1,678.12/x
  3. Step 3: Cross multiply
    1,775.08x = 2,451.30 × 1,678.12
  4. Step 4: Simplify right side
    1,775.08x = 4,113,575.56
  5. Step 5: Solve for x
    x = 4,113,575.56/1,775.08
  6. Step 6: Final answer
    x = 2,317.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.