Home / 2,221.61-3,332.36-578.16

Finding the Fourth Proportional to 2,221.61, 3,332.36 and 578.16

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Solution

The fourth proportional to 2,221.61, 3,332.36 and 578.16 is: 867.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.61 : 3,332.36 = 578.16 : x
  2. Step 2: Convert to fraction form
    2,221.61/3,332.36 = 578.16/x
  3. Step 3: Cross multiply
    2,221.61x = 3,332.36 × 578.16
  4. Step 4: Simplify right side
    2,221.61x = 1,926,638.70
  5. Step 5: Solve for x
    x = 1,926,638.70/2,221.61
  6. Step 6: Final answer
    x = 867.23

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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.