Home / 1,554.13-2,143.29-1,199.17

Finding the Fourth Proportional to 1,554.13, 2,143.29 and 1,199.17

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Solution

The fourth proportional to 1,554.13, 2,143.29 and 1,199.17 is: 1,653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.13 : 2,143.29 = 1,199.17 : x
  2. Step 2: Convert to fraction form
    1,554.13/2,143.29 = 1,199.17/x
  3. Step 3: Cross multiply
    1,554.13x = 2,143.29 × 1,199.17
  4. Step 4: Simplify right side
    1,554.13x = 2,570,152.36
  5. Step 5: Solve for x
    x = 2,570,152.36/1,554.13
  6. Step 6: Final answer
    x = 1,653.76

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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.