Home / 1,545.55-2,313.23-1,331.71

Finding the Fourth Proportional to 1,545.55, 2,313.23 and 1,331.71

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Solution

The fourth proportional to 1,545.55, 2,313.23 and 1,331.71 is: 1,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.55 : 2,313.23 = 1,331.71 : x
  2. Step 2: Convert to fraction form
    1,545.55/2,313.23 = 1,331.71/x
  3. Step 3: Cross multiply
    1,545.55x = 2,313.23 × 1,331.71
  4. Step 4: Simplify right side
    1,545.55x = 3,080,539.08
  5. Step 5: Solve for x
    x = 3,080,539.08/1,545.55
  6. Step 6: Final answer
    x = 1,993.17

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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.