Home / 4,293.84-6,440.76-1,215.84

Finding the Fourth Proportional to 4,293.84, 6,440.76 and 1,215.84

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Solution

The fourth proportional to 4,293.84, 6,440.76 and 1,215.84 is: 1,823.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,293.84 : 6,440.76 = 1,215.84 : x
  2. Step 2: Convert to fraction form
    4,293.84/6,440.76 = 1,215.84/x
  3. Step 3: Cross multiply
    4,293.84x = 6,440.76 × 1,215.84
  4. Step 4: Simplify right side
    4,293.84x = 7,830,933.64
  5. Step 5: Solve for x
    x = 7,830,933.64/4,293.84
  6. Step 6: Final answer
    x = 1,823.76

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Similar ratio
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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.