Home / 1,986.24-2,740.56-1,158.24

Finding the Fourth Proportional to 1,986.24, 2,740.56 and 1,158.24

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Solution

The fourth proportional to 1,986.24, 2,740.56 and 1,158.24 is: 1,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.24 : 2,740.56 = 1,158.24 : x
  2. Step 2: Convert to fraction form
    1,986.24/2,740.56 = 1,158.24/x
  3. Step 3: Cross multiply
    1,986.24x = 2,740.56 × 1,158.24
  4. Step 4: Simplify right side
    1,986.24x = 3,174,226.21
  5. Step 5: Solve for x
    x = 3,174,226.21/1,986.24
  6. Step 6: Final answer
    x = 1,598.11

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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.