Home / 1,526.26-2,289.38-661.18

Finding the Fourth Proportional to 1,526.26, 2,289.38 and 661.18

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Solution

The fourth proportional to 1,526.26, 2,289.38 and 661.18 is: 991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.26 : 2,289.38 = 661.18 : x
  2. Step 2: Convert to fraction form
    1,526.26/2,289.38 = 661.18/x
  3. Step 3: Cross multiply
    1,526.26x = 2,289.38 × 661.18
  4. Step 4: Simplify right side
    1,526.26x = 1,513,692.27
  5. Step 5: Solve for x
    x = 1,513,692.27/1,526.26
  6. Step 6: Final answer
    x = 991.77

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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.