Home / 2,124.70-2,932.09-1,240.56

Finding the Fourth Proportional to 2,124.70, 2,932.09 and 1,240.56

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Solution

The fourth proportional to 2,124.70, 2,932.09 and 1,240.56 is: 1,711.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.70 : 2,932.09 = 1,240.56 : x
  2. Step 2: Convert to fraction form
    2,124.70/2,932.09 = 1,240.56/x
  3. Step 3: Cross multiply
    2,124.70x = 2,932.09 × 1,240.56
  4. Step 4: Simplify right side
    2,124.70x = 3,637,430.47
  5. Step 5: Solve for x
    x = 3,637,430.47/2,124.70
  6. Step 6: Final answer
    x = 1,711.98

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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.