Home / 1,851.68-2,555.16-1,143.32

Finding the Fourth Proportional to 1,851.68, 2,555.16 and 1,143.32

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Solution

The fourth proportional to 1,851.68, 2,555.16 and 1,143.32 is: 1,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.68 : 2,555.16 = 1,143.32 : x
  2. Step 2: Convert to fraction form
    1,851.68/2,555.16 = 1,143.32/x
  3. Step 3: Cross multiply
    1,851.68x = 2,555.16 × 1,143.32
  4. Step 4: Simplify right side
    1,851.68x = 2,921,365.53
  5. Step 5: Solve for x
    x = 2,921,365.53/1,851.68
  6. Step 6: Final answer
    x = 1,577.68

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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.