Home / 1,543.34-2,130.12-1,169.67

Finding the Fourth Proportional to 1,543.34, 2,130.12 and 1,169.67

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Solution

The fourth proportional to 1,543.34, 2,130.12 and 1,169.67 is: 1,614.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.34 : 2,130.12 = 1,169.67 : x
  2. Step 2: Convert to fraction form
    1,543.34/2,130.12 = 1,169.67/x
  3. Step 3: Cross multiply
    1,543.34x = 2,130.12 × 1,169.67
  4. Step 4: Simplify right side
    1,543.34x = 2,491,533.07
  5. Step 5: Solve for x
    x = 2,491,533.07/1,543.34
  6. Step 6: Final answer
    x = 1,614.37

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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.