Home / 1,526.85-2,290.50-486.51

Finding the Fourth Proportional to 1,526.85, 2,290.50 and 486.51

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Solution

The fourth proportional to 1,526.85, 2,290.50 and 486.51 is: 729.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.85 : 2,290.50 = 486.51 : x
  2. Step 2: Convert to fraction form
    1,526.85/2,290.50 = 486.51/x
  3. Step 3: Cross multiply
    1,526.85x = 2,290.50 × 486.51
  4. Step 4: Simplify right side
    1,526.85x = 1,114,351.16
  5. Step 5: Solve for x
    x = 1,114,351.16/1,526.85
  6. Step 6: Final answer
    x = 729.84

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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.