Home / 1,552.16-2,143.68-1,455.68

Finding the Fourth Proportional to 1,552.16, 2,143.68 and 1,455.68

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Solution

The fourth proportional to 1,552.16, 2,143.68 and 1,455.68 is: 2,010.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.16 : 2,143.68 = 1,455.68 : x
  2. Step 2: Convert to fraction form
    1,552.16/2,143.68 = 1,455.68/x
  3. Step 3: Cross multiply
    1,552.16x = 2,143.68 × 1,455.68
  4. Step 4: Simplify right side
    1,552.16x = 3,120,512.10
  5. Step 5: Solve for x
    x = 3,120,512.10/1,552.16
  6. Step 6: Final answer
    x = 2,010.43

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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.