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Finding the Fourth Proportional to 5,430.99, 7,491.21 and 4,310.16

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Solution

The fourth proportional to 5,430.99, 7,491.21 and 4,310.16 is: 5,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.99 : 7,491.21 = 4,310.16 : x
  2. Step 2: Convert to fraction form
    5,430.99/7,491.21 = 4,310.16/x
  3. Step 3: Cross multiply
    5,430.99x = 7,491.21 × 4,310.16
  4. Step 4: Simplify right side
    5,430.99x = 32,288,313.69
  5. Step 5: Solve for x
    x = 32,288,313.69/5,430.99
  6. Step 6: Final answer
    x = 5,945.20

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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.