Home / 1,518.23-2,095.43-888.79

Finding the Fourth Proportional to 1,518.23, 2,095.43 and 888.79

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Solution

The fourth proportional to 1,518.23, 2,095.43 and 888.79 is: 1,226.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.23 : 2,095.43 = 888.79 : x
  2. Step 2: Convert to fraction form
    1,518.23/2,095.43 = 888.79/x
  3. Step 3: Cross multiply
    1,518.23x = 2,095.43 × 888.79
  4. Step 4: Simplify right side
    1,518.23x = 1,862,397.23
  5. Step 5: Solve for x
    x = 1,862,397.23/1,518.23
  6. Step 6: Final answer
    x = 1,226.69

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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.