Home / 1,937.92-2,675.28-1,320.16

Finding the Fourth Proportional to 1,937.92, 2,675.28 and 1,320.16

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Solution

The fourth proportional to 1,937.92, 2,675.28 and 1,320.16 is: 1,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.92 : 2,675.28 = 1,320.16 : x
  2. Step 2: Convert to fraction form
    1,937.92/2,675.28 = 1,320.16/x
  3. Step 3: Cross multiply
    1,937.92x = 2,675.28 × 1,320.16
  4. Step 4: Simplify right side
    1,937.92x = 3,531,797.64
  5. Step 5: Solve for x
    x = 3,531,797.64/1,937.92
  6. Step 6: Final answer
    x = 1,822.47

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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.