Home / 1,857.02-2,561.28-1,298.48

Finding the Fourth Proportional to 1,857.02, 2,561.28 and 1,298.48

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Solution

The fourth proportional to 1,857.02, 2,561.28 and 1,298.48 is: 1,790.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.02 : 2,561.28 = 1,298.48 : x
  2. Step 2: Convert to fraction form
    1,857.02/2,561.28 = 1,298.48/x
  3. Step 3: Cross multiply
    1,857.02x = 2,561.28 × 1,298.48
  4. Step 4: Simplify right side
    1,857.02x = 3,325,770.85
  5. Step 5: Solve for x
    x = 3,325,770.85/1,857.02
  6. Step 6: Final answer
    x = 1,790.92

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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.