Home / 1,215.37-1,822.61-435.16

Finding the Fourth Proportional to 1,215.37, 1,822.61 and 435.16

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Solution

The fourth proportional to 1,215.37, 1,822.61 and 435.16 is: 652.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.37 : 1,822.61 = 435.16 : x
  2. Step 2: Convert to fraction form
    1,215.37/1,822.61 = 435.16/x
  3. Step 3: Cross multiply
    1,215.37x = 1,822.61 × 435.16
  4. Step 4: Simplify right side
    1,215.37x = 793,125.88
  5. Step 5: Solve for x
    x = 793,125.88/1,215.37
  6. Step 6: Final answer
    x = 652.58

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1.5x scale

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.