Home / 1,140.10-1,563.08-1,119.34

Finding the Fourth Proportional to 1,140.10, 1,563.08 and 1,119.34

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Solution

The fourth proportional to 1,140.10, 1,563.08 and 1,119.34 is: 1,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.10 : 1,563.08 = 1,119.34 : x
  2. Step 2: Convert to fraction form
    1,140.10/1,563.08 = 1,119.34/x
  3. Step 3: Cross multiply
    1,140.10x = 1,563.08 × 1,119.34
  4. Step 4: Simplify right side
    1,140.10x = 1,749,617.97
  5. Step 5: Solve for x
    x = 1,749,617.97/1,140.10
  6. Step 6: Final answer
    x = 1,534.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.