Home / 2,145.91-2,958.52-1,547.90

Finding the Fourth Proportional to 2,145.91, 2,958.52 and 1,547.90

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Solution

The fourth proportional to 2,145.91, 2,958.52 and 1,547.90 is: 2,134.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.91 : 2,958.52 = 1,547.90 : x
  2. Step 2: Convert to fraction form
    2,145.91/2,958.52 = 1,547.90/x
  3. Step 3: Cross multiply
    2,145.91x = 2,958.52 × 1,547.90
  4. Step 4: Simplify right side
    2,145.91x = 4,579,493.11
  5. Step 5: Solve for x
    x = 4,579,493.11/2,145.91
  6. Step 6: Final answer
    x = 2,134.06

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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.