Home / 2,129.94-2,937.66-1,458.15

Finding the Fourth Proportional to 2,129.94, 2,937.66 and 1,458.15

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Solution

The fourth proportional to 2,129.94, 2,937.66 and 1,458.15 is: 2,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.94 : 2,937.66 = 1,458.15 : x
  2. Step 2: Convert to fraction form
    2,129.94/2,937.66 = 1,458.15/x
  3. Step 3: Cross multiply
    2,129.94x = 2,937.66 × 1,458.15
  4. Step 4: Simplify right side
    2,129.94x = 4,283,548.93
  5. Step 5: Solve for x
    x = 4,283,548.93/2,129.94
  6. Step 6: Final answer
    x = 2,011.11

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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.