Home / 1,525.77-2,288.59-430.11

Finding the Fourth Proportional to 1,525.77, 2,288.59 and 430.11

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Solution

The fourth proportional to 1,525.77, 2,288.59 and 430.11 is: 645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.77 : 2,288.59 = 430.11 : x
  2. Step 2: Convert to fraction form
    1,525.77/2,288.59 = 430.11/x
  3. Step 3: Cross multiply
    1,525.77x = 2,288.59 × 430.11
  4. Step 4: Simplify right side
    1,525.77x = 984,344.37
  5. Step 5: Solve for x
    x = 984,344.37/1,525.77
  6. Step 6: Final answer
    x = 645.15

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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.