Home / 1,539.24-2,309.02-499.30

Finding the Fourth Proportional to 1,539.24, 2,309.02 and 499.30

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Solution

The fourth proportional to 1,539.24, 2,309.02 and 499.30 is: 749.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.24 : 2,309.02 = 499.30 : x
  2. Step 2: Convert to fraction form
    1,539.24/2,309.02 = 499.30/x
  3. Step 3: Cross multiply
    1,539.24x = 2,309.02 × 499.30
  4. Step 4: Simplify right side
    1,539.24x = 1,152,893.69
  5. Step 5: Solve for x
    x = 1,152,893.69/1,539.24
  6. Step 6: Final answer
    x = 749.00

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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.