Home / 4,293.28-6,440.96-1,215.28

Finding the Fourth Proportional to 4,293.28, 6,440.96 and 1,215.28

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Solution

The fourth proportional to 4,293.28, 6,440.96 and 1,215.28 is: 1,823.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,293.28 : 6,440.96 = 1,215.28 : x
  2. Step 2: Convert to fraction form
    4,293.28/6,440.96 = 1,215.28/x
  3. Step 3: Cross multiply
    4,293.28x = 6,440.96 × 1,215.28
  4. Step 4: Simplify right side
    4,293.28x = 7,827,569.87
  5. Step 5: Solve for x
    x = 7,827,569.87/4,293.28
  6. Step 6: Final answer
    x = 1,823.21

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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.