Home / 1,613.45-2,226.18-914.83

Finding the Fourth Proportional to 1,613.45, 2,226.18 and 914.83

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Solution

The fourth proportional to 1,613.45, 2,226.18 and 914.83 is: 1,262.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.45 : 2,226.18 = 914.83 : x
  2. Step 2: Convert to fraction form
    1,613.45/2,226.18 = 914.83/x
  3. Step 3: Cross multiply
    1,613.45x = 2,226.18 × 914.83
  4. Step 4: Simplify right side
    1,613.45x = 2,036,574.11
  5. Step 5: Solve for x
    x = 2,036,574.11/1,613.45
  6. Step 6: Final answer
    x = 1,262.25

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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.