Home / 3,543.40-5,313.56-1,077.65

Finding the Fourth Proportional to 3,543.40, 5,313.56 and 1,077.65

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Solution

The fourth proportional to 3,543.40, 5,313.56 and 1,077.65 is: 1,616.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.40 : 5,313.56 = 1,077.65 : x
  2. Step 2: Convert to fraction form
    3,543.40/5,313.56 = 1,077.65/x
  3. Step 3: Cross multiply
    3,543.40x = 5,313.56 × 1,077.65
  4. Step 4: Simplify right side
    3,543.40x = 5,726,133.99
  5. Step 5: Solve for x
    x = 5,726,133.99/3,543.40
  6. Step 6: Final answer
    x = 1,616.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.