Home / 2,139.24-2,953.14-1,432.26

Finding the Fourth Proportional to 2,139.24, 2,953.14 and 1,432.26

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Solution

The fourth proportional to 2,139.24, 2,953.14 and 1,432.26 is: 1,977.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139.24 : 2,953.14 = 1,432.26 : x
  2. Step 2: Convert to fraction form
    2,139.24/2,953.14 = 1,432.26/x
  3. Step 3: Cross multiply
    2,139.24x = 2,953.14 × 1,432.26
  4. Step 4: Simplify right side
    2,139.24x = 4,229,664.30
  5. Step 5: Solve for x
    x = 4,229,664.30/2,139.24
  6. Step 6: Final answer
    x = 1,977.18

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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.