Home / 1,526.23-2,289.36-486.23

Finding the Fourth Proportional to 1,526.23, 2,289.36 and 486.23

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Solution

The fourth proportional to 1,526.23, 2,289.36 and 486.23 is: 729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.23 : 2,289.36 = 486.23 : x
  2. Step 2: Convert to fraction form
    1,526.23/2,289.36 = 486.23/x
  3. Step 3: Cross multiply
    1,526.23x = 2,289.36 × 486.23
  4. Step 4: Simplify right side
    1,526.23x = 1,113,144.52
  5. Step 5: Solve for x
    x = 1,113,144.52/1,526.23
  6. Step 6: Final answer
    x = 729.34

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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.