Home / 1,514.20-2,088.65-954.20

Finding the Fourth Proportional to 1,514.20, 2,088.65 and 954.20

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Solution

The fourth proportional to 1,514.20, 2,088.65 and 954.20 is: 1,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.20 : 2,088.65 = 954.20 : x
  2. Step 2: Convert to fraction form
    1,514.20/2,088.65 = 954.20/x
  3. Step 3: Cross multiply
    1,514.20x = 2,088.65 × 954.20
  4. Step 4: Simplify right side
    1,514.20x = 1,992,989.83
  5. Step 5: Solve for x
    x = 1,992,989.83/1,514.20
  6. Step 6: Final answer
    x = 1,316.20

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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.