Home / 2,154.17-2,971.12-1,855.92

Finding the Fourth Proportional to 2,154.17, 2,971.12 and 1,855.92

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Solution

The fourth proportional to 2,154.17, 2,971.12 and 1,855.92 is: 2,559.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.17 : 2,971.12 = 1,855.92 : x
  2. Step 2: Convert to fraction form
    2,154.17/2,971.12 = 1,855.92/x
  3. Step 3: Cross multiply
    2,154.17x = 2,971.12 × 1,855.92
  4. Step 4: Simplify right side
    2,154.17x = 5,514,161.03
  5. Step 5: Solve for x
    x = 5,514,161.03/2,154.17
  6. Step 6: Final answer
    x = 2,559.76

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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.