Home / 1,518.50-2,095.58-889.08

Finding the Fourth Proportional to 1,518.50, 2,095.58 and 889.08

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Solution

The fourth proportional to 1,518.50, 2,095.58 and 889.08 is: 1,226.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.50 : 2,095.58 = 889.08 : x
  2. Step 2: Convert to fraction form
    1,518.50/2,095.58 = 889.08/x
  3. Step 3: Cross multiply
    1,518.50x = 2,095.58 × 889.08
  4. Step 4: Simplify right side
    1,518.50x = 1,863,133.82
  5. Step 5: Solve for x
    x = 1,863,133.82/1,518.50
  6. Step 6: Final answer
    x = 1,226.96

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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.