Home / 1,513.99-2,088.78-946.44

Finding the Fourth Proportional to 1,513.99, 2,088.78 and 946.44

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Solution

The fourth proportional to 1,513.99, 2,088.78 and 946.44 is: 1,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.99 : 2,088.78 = 946.44 : x
  2. Step 2: Convert to fraction form
    1,513.99/2,088.78 = 946.44/x
  3. Step 3: Cross multiply
    1,513.99x = 2,088.78 × 946.44
  4. Step 4: Simplify right side
    1,513.99x = 1,976,904.94
  5. Step 5: Solve for x
    x = 1,976,904.94/1,513.99
  6. Step 6: Final answer
    x = 1,305.76

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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.