Home / 4,221.47-6,332.16-1,143.47

Finding the Fourth Proportional to 4,221.47, 6,332.16 and 1,143.47

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Solution

The fourth proportional to 4,221.47, 6,332.16 and 1,143.47 is: 1,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.47 : 6,332.16 = 1,143.47 : x
  2. Step 2: Convert to fraction form
    4,221.47/6,332.16 = 1,143.47/x
  3. Step 3: Cross multiply
    4,221.47x = 6,332.16 × 1,143.47
  4. Step 4: Simplify right side
    4,221.47x = 7,240,635.00
  5. Step 5: Solve for x
    x = 7,240,635.00/4,221.47
  6. Step 6: Final answer
    x = 1,715.19

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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.