Home / 2,127.38-2,934.99-1,569.20

Finding the Fourth Proportional to 2,127.38, 2,934.99 and 1,569.20

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Solution

The fourth proportional to 2,127.38, 2,934.99 and 1,569.20 is: 2,164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.38 : 2,934.99 = 1,569.20 : x
  2. Step 2: Convert to fraction form
    2,127.38/2,934.99 = 1,569.20/x
  3. Step 3: Cross multiply
    2,127.38x = 2,934.99 × 1,569.20
  4. Step 4: Simplify right side
    2,127.38x = 4,605,571.63
  5. Step 5: Solve for x
    x = 4,605,571.63/2,127.38
  6. Step 6: Final answer
    x = 2,164.91

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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.